Homo neanderthalensis-sofia-doyaguez.ppt
•Download as PPTX, PDF•
1 like•1,619 views
Homo neanderthalensis were an extinct human species that inhabited Europe and parts of western Asia from 230,000 to 28,000 years ago. They lived in organized groups of around thirty members in caves, used fire, and buried their dead. Neanderthals had robust skeletons, wide pelvises, short limbs, barrel chests, and large cranial capacities. There is debate around their language abilities and communication systems. While their tools were more advanced than earlier humans, Neanderthals combined different stone types and used various stones for specialized tasks.
Report
Share
Report
Share
Recommended
Homo Neanderthalensis
The Neanderthal was an extinct species that lived in Europe and western Asia from 230,000 to 28,000 years ago. They co-existed with early modern humans known as Cro-Magnon for approximately 5,000 years, as evidenced by fossils found in Châtelperron caves. Neanderthals had short, robust bodies adapted to cold environments, with wide pelvises, short limbs, and prominent facial features including low brows and no chin. They lived in organized social groups and knew how to use fire and make tools from bones and stones.
Neanderthals powerpoint
The document provides information about Neanderthals, including their tools, habitat, anatomy, and possible causes of extinction. It describes Neanderthals as living in cold areas of Europe and Asia between 350,000-500,000 years ago. They made tools from flint and stone for hunting and cutting. Neanderthals had short limbs, a wide rib cage, and smaller brains than humans. They likely communicated minimally but also made simple art and buried their dead children, indicating emotional complexity. While primarily scavengers, they could kill large animals. Competition with modern humans is theorized to have driven Neanderthals to extinction.
Homo heidelbergensis
Homo heidelbergensis lived between 125,000 to 880,000 years ago in Europe, Africa and Asia. Fossils have been found of over 32 individuals, mostly from a cave in Spain. H. heidelbergensis had a cranial capacity averaging 1200cc and made advanced stone tools. They were skilled hunters, likely communicating in groups to hunt large animals. Evidence suggests they were caring for sick or injured group members. H. heidelbergensis is considered an ancestor to both Neanderthals and modern humans.
Neanderthal
Neanderthals and Homo sapiens shared some cultural similarities like using fire and tools, hunting, and living in social groups. However, Neanderthals lacked symbolic thought and language. They buried their dead and had spirituality but no art or jewelry. Neanderthals had larger brains than Homo sapiens but lacked an advanced culture. While they could make grunts and screams, their voice boxes were smaller. Theories on Neanderthal extinction include that they were outcompeted by Homo sapiens who had advantages in communication and culture, or that the two species interbred until Neanderthal traits disappeared.
THE STORY OF HUMAN EVOLUTION
The document provides an overview of human evolution from early hominids to modern humans. It discusses that hominids diverged from apes around 8 million years ago. Early hominids such as Australopithecines, Homo habilis, and Homo erectus developed increasingly advanced tools and technology. Homo sapiens emerged around 200,000 years ago, with Neanderthals present until around 30,000 years ago when they were replaced by Cro-Magnon humans. It also summarizes the transition to more settled agricultural lifestyles during the Neolithic period around 10,000 BCE. Key adaptations that differentiated humans from apes included bipedalism, increased brain size, changes in
Homo erectus
Homo erectus lived between 1.8 million to 100,000 years ago. They were hunters and gatherers who lived in organized social groups and were the first hominins to control fire and use advanced carving techniques to make tools. Homo erectus had evolved to walk upright, had skulls with brains ranging from 800 to 1000 cm3 in size, and exhibited physical traits such as a chinless jaw, low sloping forehead, and small teeth.
human evolution
1. The document summarizes key aspects of human evolution, including the earliest hominins that originated in Africa 6-7 million years ago and the appearance of modern humans around 200,000 years ago.
2. Key hominin species discussed are Australopithecus, Homo habilis, Homo erectus, Homo floresiensis, Homo neanderthalensis, and Homo sapiens. Major adaptations include bipedalism, increased brain size, tool use, and use of fire.
3. The timeline shows human ancestors like Homo erectus migrating from Africa around 1.8 million years ago, with Homo sapiens emerging in Africa around 195,
The Emergence Of Homo Sapiens
The document summarizes the emergence and evolution of early human species from Homo erectus to Homo sapiens. It describes key findings such as the transition from Homo erectus to Homo sapiens around 500,000 years ago. Neanderthals appeared in Europe and western Asia around 300,000 years ago. Modern humans emerged in Africa around 160,000 years ago and spread throughout the Old World, eventually replacing Neanderthals. Upper Paleolithic cultures from 40,000 years ago produced new toolmaking techniques like blade production and pressure flaking.
Recommended
Homo Neanderthalensis
The Neanderthal was an extinct species that lived in Europe and western Asia from 230,000 to 28,000 years ago. They co-existed with early modern humans known as Cro-Magnon for approximately 5,000 years, as evidenced by fossils found in Châtelperron caves. Neanderthals had short, robust bodies adapted to cold environments, with wide pelvises, short limbs, and prominent facial features including low brows and no chin. They lived in organized social groups and knew how to use fire and make tools from bones and stones.
Neanderthals powerpoint
The document provides information about Neanderthals, including their tools, habitat, anatomy, and possible causes of extinction. It describes Neanderthals as living in cold areas of Europe and Asia between 350,000-500,000 years ago. They made tools from flint and stone for hunting and cutting. Neanderthals had short limbs, a wide rib cage, and smaller brains than humans. They likely communicated minimally but also made simple art and buried their dead children, indicating emotional complexity. While primarily scavengers, they could kill large animals. Competition with modern humans is theorized to have driven Neanderthals to extinction.
Homo heidelbergensis
Homo heidelbergensis lived between 125,000 to 880,000 years ago in Europe, Africa and Asia. Fossils have been found of over 32 individuals, mostly from a cave in Spain. H. heidelbergensis had a cranial capacity averaging 1200cc and made advanced stone tools. They were skilled hunters, likely communicating in groups to hunt large animals. Evidence suggests they were caring for sick or injured group members. H. heidelbergensis is considered an ancestor to both Neanderthals and modern humans.
Neanderthal
Neanderthals and Homo sapiens shared some cultural similarities like using fire and tools, hunting, and living in social groups. However, Neanderthals lacked symbolic thought and language. They buried their dead and had spirituality but no art or jewelry. Neanderthals had larger brains than Homo sapiens but lacked an advanced culture. While they could make grunts and screams, their voice boxes were smaller. Theories on Neanderthal extinction include that they were outcompeted by Homo sapiens who had advantages in communication and culture, or that the two species interbred until Neanderthal traits disappeared.
THE STORY OF HUMAN EVOLUTION
The document provides an overview of human evolution from early hominids to modern humans. It discusses that hominids diverged from apes around 8 million years ago. Early hominids such as Australopithecines, Homo habilis, and Homo erectus developed increasingly advanced tools and technology. Homo sapiens emerged around 200,000 years ago, with Neanderthals present until around 30,000 years ago when they were replaced by Cro-Magnon humans. It also summarizes the transition to more settled agricultural lifestyles during the Neolithic period around 10,000 BCE. Key adaptations that differentiated humans from apes included bipedalism, increased brain size, changes in
Homo erectus
Homo erectus lived between 1.8 million to 100,000 years ago. They were hunters and gatherers who lived in organized social groups and were the first hominins to control fire and use advanced carving techniques to make tools. Homo erectus had evolved to walk upright, had skulls with brains ranging from 800 to 1000 cm3 in size, and exhibited physical traits such as a chinless jaw, low sloping forehead, and small teeth.
human evolution
1. The document summarizes key aspects of human evolution, including the earliest hominins that originated in Africa 6-7 million years ago and the appearance of modern humans around 200,000 years ago.
2. Key hominin species discussed are Australopithecus, Homo habilis, Homo erectus, Homo floresiensis, Homo neanderthalensis, and Homo sapiens. Major adaptations include bipedalism, increased brain size, tool use, and use of fire.
3. The timeline shows human ancestors like Homo erectus migrating from Africa around 1.8 million years ago, with Homo sapiens emerging in Africa around 195,
The Emergence Of Homo Sapiens
The document summarizes the emergence and evolution of early human species from Homo erectus to Homo sapiens. It describes key findings such as the transition from Homo erectus to Homo sapiens around 500,000 years ago. Neanderthals appeared in Europe and western Asia around 300,000 years ago. Modern humans emerged in Africa around 160,000 years ago and spread throughout the Old World, eventually replacing Neanderthals. Upper Paleolithic cultures from 40,000 years ago produced new toolmaking techniques like blade production and pressure flaking.
Homo sapiens sapiens
Humans, scientifically known as Homo Sapiens, emerged around 12,000 years ago in Africa and are the only surviving species of the Homo genus. As hunter-gatherers, early humans lacked modern behaviors like abstract thinking until around 50,000 years ago when signs of prehistoric art began to emerge. Modern humans are highly intelligent social animals capable of complex language, logic, science, and technology that sets them apart from other species.
Groups of Hominids
The document provides information about major groups of hominids (prehistoric humans), including Australopithecus, Homo habilis, Homo erectus, Homo sapiens, and Neanderthals. It notes key facts about when and where each group appeared, distinguishing physical characteristics, behaviors, and tool usage. The document also compares modern humans to Neanderthals, noting they coexisted for 10,000 years before Neanderthals disappeared.
Evolution of man
This document provides an overview of human evolution, beginning with early primate ancestors such as Propliopithecus that lived 50-25 million years ago. It describes several pre-human ancestors in chronological order, including Australopithecus, Homo habilis, Homo erectus, Homo heidelbergensis, Neanderthals, and Cro-Magnon. It discusses evidence for human evolution from molecular biology and genetics. The document also covers theories of human origins, morphological changes during humanization, and timelines of evolutionary periods.
Research project - human evolution
The document summarizes research on human evolution from early hominids like Australopithecus to modern Homo sapiens. It discusses topics like the incomplete fossil record, disagreements around hominid species numbers and timelines, and key species like Australopithecus afarensis, Homo erectus, and Homo sapiens. Comparisons are made between skeletal structures, brain sizes, and pelvises of different hominids to illustrate anatomical changes over time.
Human Evolution
This document provides an overview of primate and hominid evolution from early primates to modern humans. It describes key developments such as the evolution of binocular vision and grasping limbs in early primates. Important hominid species discussed include Australopithecus, Homo habilis, Homo erectus, Neanderthals, Homo floresiensis, and Homo sapiens. Adaptations to bipedalism and expanding brain size in hominids are highlighted.
3. Human Evolution
- The document discusses human evolution from early primates to modern humans. It describes key developments like bipedalism, increasing brain size, use of tools and fire, and cultural evolution.
- Early primates like tarsiers, lemurs, and lorises evolved around 58 million years ago. Monkeys emerged around 35 million years ago and the first hominids around 6 million years ago.
- Adaptations for tree-dwelling included grasping hands and feet, stereoscopic vision, and long limbs. Bipedalism evolved in early hominids like Australopithecus as an adaptation for life on the ground.
Homo Habilis
Homo Habilis were early hominins that lived approximately 2.5 million years ago in Tanzania. They had a brain size of around 510 cc and lived in simple shelters made of fallen trees or cliffs. Their tools were rudimentary, such as axes made from pointed rocks tied to sticks. Homo Habilis were opportunistic omnivores that ate plants, fruits, eggs, meat, and scavenged carcasses. They lived in groups and had basic cultures with no developed music, religion, or other entertainment.
Human evolution
Some slides of our presentations about hominins.
4º ESO students
IES Claudio Sánchez Albornoz, León, Spain
Homo sapiens presentation 6F
Homo sapiens originated in Africa and then spread throughout the world approximately 100,000 years ago. There are two theories for how this occurred - either Homo sapiens developed in Africa and migrated worldwide, or ancestors developed separately into Homo sapiens in different locations. Homo sapiens were able to inhabit all environments due to their omnivorous diet, bipedalism, and ability to use complex tools.
The emergence of homo sapiens
This document summarizes the emergence of early humans from 500,000 BC to 5,000 BC. It describes some of the earliest human ancestors like Java Man and Peking Man, and discusses Neanderthals and Cro-Magnon man. Neanderthals used tools and fire, and evidence suggests they buried their dead with grave goods. Cro-Magnon man was more advanced, creating cave paintings, carvings, and sewing clothes. The document also outlines the development of agriculture during the New Stone Age, as humans transitioned from hunter-gatherers to food producers.
Notes ch16
Charles Darwin developed the theory of evolution by natural selection based on observations he made during a 5-year voyage. He noticed that related species varied between locations and over time, suggesting descent from common ancestors. Darwin proposed that variations within species provided different adaptations for survival and reproduction, and that natural selection led populations to change over generations as favorable traits increased. His 1859 book On the Origin of Species outlined evolution based on struggle for existence, variation and adaptation, and survival of the fittest. Fossil, anatomical, embryological, and genetic evidence now provide strong support for evolution through natural selection.
kinetic and potential energy
Kinetic energy is the energy of a moving object and depends on its mass and velocity. It can be calculated using the formula Kinetic Energy (KE) = 1/2 x mass x velocity squared. Potential energy is the energy an object can use due to its position or state, such as the energy of an object raised above the ground due to gravity. It can be calculated using the formula Potential Energy (PE) = mass x gravity x height. The document provides these definitions and formulas for kinetic and potential energy, calculates examples of each, and explains the relationship between the two types of energy.
Tracing the human evolution
The document traces human evolution from primates to modern humans based on fossil and genetic evidence. Key events include:
- Primates diverged from other mammals around 55 million years ago, with the earliest primate fossil dated to 65 million years ago.
- The earliest hominins, like Sahelanthropus tchadensis from 6-7 million years ago, displayed both ape-like and human-like traits.
- Species like Australopithecus afarensis from 3-2.9 million years ago were the first to walk fully upright.
- Homo habilis and Homo erectus, dating back to 2.3 million and 1.8 million years ago respectively
Human Evolution
1) Lucy, discovered in 1974 in Ethiopia, was an early human species known as Australopithecus afarensis that lived 3.2 million years ago.
2) Though Lucy had characteristics similar to chimpanzees like a small brain and long arms, analysis of her knee and pelvis showed she routinely walked upright, placing her firmly in the human family.
3) Darwin's theory of evolution proposed that humans evolved from earlier species and are simply another form of animal, descended possibly from apes. The development of bipedalism in early humans allowed the hands to be used for other activities like using tools.
human evolution
This document outlines the timeline of human evolution from early primate ancestors 6 million years ago to modern humans. It describes key species in our evolution like Australopithecus, Homo habilis, Homo erectus, and Homo sapiens. Australopithecus was the first hominin genus to walk upright around 4 million years ago in Africa. Homo habilis evolved around 2.5 million years ago and were the first to use stone tools. Homo erectus emerged around 1.8 million years ago in Africa and was the first hominin to migrate out of Africa. Modern humans, Homo sapiens, evolved in Africa around 200,000 years ago with larger brains and lighter
Homo habilis
Homo habilis was the first species of the genus Homo and lived between 1.9-1.6 million years ago in Africa. The first fossils were discovered in Tanzania in 1962. Homo habilis was able to create and use tools, marking an advancement from earlier ancestors. It had a larger brain and skull than predecessors and fed on carrion with sharp incisors adapted for eating meat. Walking on two feet rather than four influenced pelvis shape and earlier childbirth in females of the species.
Human evolution
Human evolution began with early hominids like Proconsul that lived 20 million years ago. Early humans included Australopithecines like Lucy that walked upright 3.9-3 million years ago. Genus Homo emerged around 2.5 million years ago including Homo habilis and Homo erectus. Neanderthals lived in Europe 200,000-24,000 years ago before being replaced by modern humans with globular brains and flatter faces 130,000-90,000 years ago.
Human evolution
Dryopithecus, which lived 16-7 million years ago in Europe and Asia, was an early ape-like ancestor of humans. Ramapithecus, which became extinct 7 million years ago, displayed both ape-like and early human-like features such as smaller canines and larger molars. Australopithecus africanus, dating to 4-5 million years ago in South Africa, showed evidence of bipedal locomotion and living both in trees and on the ground. Homo habilis, from 2 million years ago in Africa, used tools and is believed to have lived in family groups and cared for young. Homo erectus, dating to 1.7 million
Australopithecus
Australopithecus was an early hominin genus that evolved in eastern Africa around 4 million years ago. They stood between 1.2 to 1.4 meters tall and had brains that were about 35% the size of modern humans. Australopithecus was bipedal and ate fruits, vegetables, and tubers. One species of Australopithecus is believed to have evolved into the genus Homo around 2 million years ago in Africa, playing an important role in human evolution.
H. erectus presentation
Homo erectus, meaning "upright man", lived between 1.9 million to 70,000 years ago. They had a brain size of 850 to 1000 cubic centimeters and were the first hominins to migrate out of Africa around 1.3 million years ago, spreading to Asia and Europe. Fossil remains have been found in locations like Java, Indonesia, Kenya, and Georgia. Homo erectus lived in groups and used shelters like bamboo forests and caves, controlling fire which allowed cooking and warmth. They made tools from wood and stone to hunt animals.
Neandtheral notes to write down
Neandtherals were a human species closely related to Homo sapiens that evolved in Europe and Asia while Homo sapiens evolved in Africa. Neandtherals were similar in size, growth, and physiology to Homo sapiens but rarely lived past 50 years of age. Economic competition between the two species is believed to have led to the extinction of Neandtherals.
Homo Ergaster
O Homo ergaster viveu no Pleistoceno na África, Europa, Ásia e Oceania, pesando cerca de 60 quilos e medindo 1,6 a 1,7 metros. Eles eram onívoros e tinham quadris adaptados para longas caminhadas, uma capacidade craniana média de 900 cm3 e possivelmente usavam ferramentas de pedra e controle do fogo.
More Related Content
What's hot
Homo sapiens sapiens
Humans, scientifically known as Homo Sapiens, emerged around 12,000 years ago in Africa and are the only surviving species of the Homo genus. As hunter-gatherers, early humans lacked modern behaviors like abstract thinking until around 50,000 years ago when signs of prehistoric art began to emerge. Modern humans are highly intelligent social animals capable of complex language, logic, science, and technology that sets them apart from other species.
Groups of Hominids
The document provides information about major groups of hominids (prehistoric humans), including Australopithecus, Homo habilis, Homo erectus, Homo sapiens, and Neanderthals. It notes key facts about when and where each group appeared, distinguishing physical characteristics, behaviors, and tool usage. The document also compares modern humans to Neanderthals, noting they coexisted for 10,000 years before Neanderthals disappeared.
Evolution of man
This document provides an overview of human evolution, beginning with early primate ancestors such as Propliopithecus that lived 50-25 million years ago. It describes several pre-human ancestors in chronological order, including Australopithecus, Homo habilis, Homo erectus, Homo heidelbergensis, Neanderthals, and Cro-Magnon. It discusses evidence for human evolution from molecular biology and genetics. The document also covers theories of human origins, morphological changes during humanization, and timelines of evolutionary periods.
Research project - human evolution
The document summarizes research on human evolution from early hominids like Australopithecus to modern Homo sapiens. It discusses topics like the incomplete fossil record, disagreements around hominid species numbers and timelines, and key species like Australopithecus afarensis, Homo erectus, and Homo sapiens. Comparisons are made between skeletal structures, brain sizes, and pelvises of different hominids to illustrate anatomical changes over time.
Human Evolution
This document provides an overview of primate and hominid evolution from early primates to modern humans. It describes key developments such as the evolution of binocular vision and grasping limbs in early primates. Important hominid species discussed include Australopithecus, Homo habilis, Homo erectus, Neanderthals, Homo floresiensis, and Homo sapiens. Adaptations to bipedalism and expanding brain size in hominids are highlighted.
3. Human Evolution
- The document discusses human evolution from early primates to modern humans. It describes key developments like bipedalism, increasing brain size, use of tools and fire, and cultural evolution.
- Early primates like tarsiers, lemurs, and lorises evolved around 58 million years ago. Monkeys emerged around 35 million years ago and the first hominids around 6 million years ago.
- Adaptations for tree-dwelling included grasping hands and feet, stereoscopic vision, and long limbs. Bipedalism evolved in early hominids like Australopithecus as an adaptation for life on the ground.
Homo Habilis
Homo Habilis were early hominins that lived approximately 2.5 million years ago in Tanzania. They had a brain size of around 510 cc and lived in simple shelters made of fallen trees or cliffs. Their tools were rudimentary, such as axes made from pointed rocks tied to sticks. Homo Habilis were opportunistic omnivores that ate plants, fruits, eggs, meat, and scavenged carcasses. They lived in groups and had basic cultures with no developed music, religion, or other entertainment.
Human evolution
Some slides of our presentations about hominins.
4º ESO students
IES Claudio Sánchez Albornoz, León, Spain
Homo sapiens presentation 6F
Homo sapiens originated in Africa and then spread throughout the world approximately 100,000 years ago. There are two theories for how this occurred - either Homo sapiens developed in Africa and migrated worldwide, or ancestors developed separately into Homo sapiens in different locations. Homo sapiens were able to inhabit all environments due to their omnivorous diet, bipedalism, and ability to use complex tools.
The emergence of homo sapiens
This document summarizes the emergence of early humans from 500,000 BC to 5,000 BC. It describes some of the earliest human ancestors like Java Man and Peking Man, and discusses Neanderthals and Cro-Magnon man. Neanderthals used tools and fire, and evidence suggests they buried their dead with grave goods. Cro-Magnon man was more advanced, creating cave paintings, carvings, and sewing clothes. The document also outlines the development of agriculture during the New Stone Age, as humans transitioned from hunter-gatherers to food producers.
Notes ch16
Charles Darwin developed the theory of evolution by natural selection based on observations he made during a 5-year voyage. He noticed that related species varied between locations and over time, suggesting descent from common ancestors. Darwin proposed that variations within species provided different adaptations for survival and reproduction, and that natural selection led populations to change over generations as favorable traits increased. His 1859 book On the Origin of Species outlined evolution based on struggle for existence, variation and adaptation, and survival of the fittest. Fossil, anatomical, embryological, and genetic evidence now provide strong support for evolution through natural selection.
kinetic and potential energy
Kinetic energy is the energy of a moving object and depends on its mass and velocity. It can be calculated using the formula Kinetic Energy (KE) = 1/2 x mass x velocity squared. Potential energy is the energy an object can use due to its position or state, such as the energy of an object raised above the ground due to gravity. It can be calculated using the formula Potential Energy (PE) = mass x gravity x height. The document provides these definitions and formulas for kinetic and potential energy, calculates examples of each, and explains the relationship between the two types of energy.
Tracing the human evolution
The document traces human evolution from primates to modern humans based on fossil and genetic evidence. Key events include:
- Primates diverged from other mammals around 55 million years ago, with the earliest primate fossil dated to 65 million years ago.
- The earliest hominins, like Sahelanthropus tchadensis from 6-7 million years ago, displayed both ape-like and human-like traits.
- Species like Australopithecus afarensis from 3-2.9 million years ago were the first to walk fully upright.
- Homo habilis and Homo erectus, dating back to 2.3 million and 1.8 million years ago respectively
Human Evolution
1) Lucy, discovered in 1974 in Ethiopia, was an early human species known as Australopithecus afarensis that lived 3.2 million years ago.
2) Though Lucy had characteristics similar to chimpanzees like a small brain and long arms, analysis of her knee and pelvis showed she routinely walked upright, placing her firmly in the human family.
3) Darwin's theory of evolution proposed that humans evolved from earlier species and are simply another form of animal, descended possibly from apes. The development of bipedalism in early humans allowed the hands to be used for other activities like using tools.
human evolution
This document outlines the timeline of human evolution from early primate ancestors 6 million years ago to modern humans. It describes key species in our evolution like Australopithecus, Homo habilis, Homo erectus, and Homo sapiens. Australopithecus was the first hominin genus to walk upright around 4 million years ago in Africa. Homo habilis evolved around 2.5 million years ago and were the first to use stone tools. Homo erectus emerged around 1.8 million years ago in Africa and was the first hominin to migrate out of Africa. Modern humans, Homo sapiens, evolved in Africa around 200,000 years ago with larger brains and lighter
Homo habilis
Homo habilis was the first species of the genus Homo and lived between 1.9-1.6 million years ago in Africa. The first fossils were discovered in Tanzania in 1962. Homo habilis was able to create and use tools, marking an advancement from earlier ancestors. It had a larger brain and skull than predecessors and fed on carrion with sharp incisors adapted for eating meat. Walking on two feet rather than four influenced pelvis shape and earlier childbirth in females of the species.
Human evolution
Human evolution began with early hominids like Proconsul that lived 20 million years ago. Early humans included Australopithecines like Lucy that walked upright 3.9-3 million years ago. Genus Homo emerged around 2.5 million years ago including Homo habilis and Homo erectus. Neanderthals lived in Europe 200,000-24,000 years ago before being replaced by modern humans with globular brains and flatter faces 130,000-90,000 years ago.
Human evolution
Dryopithecus, which lived 16-7 million years ago in Europe and Asia, was an early ape-like ancestor of humans. Ramapithecus, which became extinct 7 million years ago, displayed both ape-like and early human-like features such as smaller canines and larger molars. Australopithecus africanus, dating to 4-5 million years ago in South Africa, showed evidence of bipedal locomotion and living both in trees and on the ground. Homo habilis, from 2 million years ago in Africa, used tools and is believed to have lived in family groups and cared for young. Homo erectus, dating to 1.7 million
Australopithecus
Australopithecus was an early hominin genus that evolved in eastern Africa around 4 million years ago. They stood between 1.2 to 1.4 meters tall and had brains that were about 35% the size of modern humans. Australopithecus was bipedal and ate fruits, vegetables, and tubers. One species of Australopithecus is believed to have evolved into the genus Homo around 2 million years ago in Africa, playing an important role in human evolution.
H. erectus presentation
Homo erectus, meaning "upright man", lived between 1.9 million to 70,000 years ago. They had a brain size of 850 to 1000 cubic centimeters and were the first hominins to migrate out of Africa around 1.3 million years ago, spreading to Asia and Europe. Fossil remains have been found in locations like Java, Indonesia, Kenya, and Georgia. Homo erectus lived in groups and used shelters like bamboo forests and caves, controlling fire which allowed cooking and warmth. They made tools from wood and stone to hunt animals.
What's hot (20)
Viewers also liked
Neandtheral notes to write down
Neandtherals were a human species closely related to Homo sapiens that evolved in Europe and Asia while Homo sapiens evolved in Africa. Neandtherals were similar in size, growth, and physiology to Homo sapiens but rarely lived past 50 years of age. Economic competition between the two species is believed to have led to the extinction of Neandtherals.
Homo Ergaster
O Homo ergaster viveu no Pleistoceno na África, Europa, Ásia e Oceania, pesando cerca de 60 quilos e medindo 1,6 a 1,7 metros. Eles eram onívoros e tinham quadris adaptados para longas caminhadas, uma capacidade craniana média de 900 cm3 e possivelmente usavam ferramentas de pedra e controle do fogo.
Homo ergaster
Homo ergaster apareció hace unos 2 millones de años en África y se expandió hacia otros continentes. Medía alrededor de 1.8 metros y tenía un pecho más estrecho que los humanos modernos. Desarrolló un lenguaje más complejo y la capacidad de transmitir conocimientos entre generaciones. Evolucionó hacia Homo erectus en Asia y Homo heidelbergensis en Europa.
Los australopithecus
Los Australopithecus eran un grupo variado de homínidos que se extendieron por África hace 5 millones de años, ocupando un nicho ecológico importante. Vivían en bandas pequeñas en zonas tropicales de África, alimentándose de frutas y hojas. Presentaban cráneos pequeños, mandíbulas fuertes y la capacidad de caminar erguidos. El Australopithecus sediba pudo haber sido más hábil que el Homo habilis para fabricar herramientas básicas debido a su mayor destreza manual
6 Homo Sapiens
6 HOMO SAPIENS
Presentazione realizzata dalle insegnanti Carla e Paola Poppi dell' Istituto Comprensivo di Crevalcore (BO).
Anno Scolastico 2010-'11
Australopithecus
El género Australopithecus incluye varias especies de homínidos extintos que vivieron en África entre 4,5 y 1 millón de años atrás. Se caracterizaban por su postura erguida y bipedismo, aunque su cerebro era más pequeño que el de los humanos modernos. Algunas especies como A. afarensis y A. africanus han proporcionado fósiles clave para entender la evolución humana, mientras que A. sediba presenta características que lo acercan a nuestro género
Homo Habilis
Homo habilis fue la primera especie del género Homo que vivió entre 2.5 y 1.44 millones de años atrás. Se caracterizó por ser la primera en fabricar herramientas de piedra de forma sistemática, lo que demuestra su gran capacidad manual y cognitiva. Aunque era bípedo, aún mantenía algunas adaptaciones arbóreas. Su mayor capacidad craneal de 650 cc lo diferenció de los australopitecinos.
Homo Erectus
1) El Homo erectus fue la primera especie del género Homo en salir de África hace 1.8 millones de años y colonizar Asia y Europa.
2) Se caracterizaba por su postura erguida, un cerebro más grande que sus predecesores, y el uso sistemático de herramientas y fuego.
3) El Homo erectus dejó un legado importante como la domesticación del fuego, que permitió la colonización de nuevas áreas y el desarrollo de habilidades humanas.
HOMO ERECTUS
Homo erectus fue una especie humana robusta que vivió entre 1.8 millones y 300 mil años atrás en Asia y África. Tenía un tamaño corporal grande, con un cerebro entre 800-1200 cc, y utilizaba herramientas de piedra pulida para cazar en grupo. Aprendió a utilizar el fuego para calentarse y cocinar, aunque no podía producirlo. Emigró fuera de África, estableciéndose en Europa y Asia donde se adaptó a climas más fríos.
Viewers also liked (9)
Similar to Homo neanderthalensis-sofia-doyaguez.ppt
Neanderthal
The document summarizes key facts about Neanderthals. Neanderthals emerged around 200,000 years ago and lived across Europe and parts of Asia until going extinct around 24,000 years ago. They were well-adapted for cold environments and hunted large game. Evidence indicates Neanderthals used complex stone tools, buried their dead, and had the capability for spoken language. While the exact cause is unknown, their extinction may have been due to competition from modern humans migrating out of Africa.
Understanding Our Past
1) Anthropologists study prehistory by examining physical remains and artifacts from early humans and their ancestors. They investigate periods before written records to understand how people lived.
2) Early human ancestors like Ardipithecus ramidus lived 4-5 million years ago in Africa. Australopithecines like Lucy lived 3 million years ago. Homo habilis 2.6 million years ago was the first to make tools.
3) Homo erectus emerged around 2 million years ago, were the first upright walkers, and migrated from Africa to Asia and Europe. Modern humans, Homo sapiens, emerged around 250,000 years ago in Africa and eventually replaced Neanderthals
Evolution of man
The document summarizes human evolution from early hominids to modern humans based on paleontological evidence. It describes how humans originated from ape-like ancestors in Africa between 4-5 million years ago. Fossils of early hominids like Australopithecus, Homo habilis, Homo erectus provided evidence that humans evolved to walk upright and have larger brains and tools. Later hominids such as Neanderthals and Homo sapiens exhibited fully modern human traits and behaviors like use of fire and complex tools. The document traces the taxonomic classification of humans and provides an overview of the major stages in human evolution.
Early humans
Early humans like Homo habilis and Homo erectus began emerging around 3 million years ago in Africa. They were tool-users and hunters/gatherers. Later groups like Neanderthals and Cro-Magnon man were more advanced, controlling fire, using clothing and shelters, and creating artworks like cave paintings. The ability to control fire allowed early humans to expand across the world, following animal herds during ice age periods when sea levels were lower and land bridges appeared.
Unit of Inquiry 4: Where We Are in Place and Time: Early Humans
Hominids first appeared around 3 million years ago in Africa. Early humans like Australopithecus were smaller than modern humans and used tools. Later groups like Homo habilis and Homo erectus were taller and smarter, and Homo erectus was the first to control fire. Neanderthals were also a species of early human. Cro-Magnon man was an advanced early human that lived in Europe around 30,000 years ago and made cave paintings, though the purpose of these paintings remains a mystery.
Hi my name is geet
The document summarizes the evolution of early humans from the beginning of life on Earth to Cro-Magnon man. It describes how life began around 4.5 billion years ago on a changing Earth. It then discusses ice ages that occurred over hundreds of millions of years, with the last major ice age ending around 10,000 years ago. Six early human species are then outlined, including Australopithecus, Zinjanthropus, Pithecanthropus, Sinanthropus, Neanderthal man, and Cro-Magnon man. Brief descriptions are provided for each species.
The early men 3
- Lucy, one of the most complete skeletons of an early human ancestor, was discovered in Ethiopia in 1974. She was about 3.5 feet tall and lived around 3-4 million years ago.
- Early humans such as Homo habilis, Homo erectus, and Homo sapiens evolved in Africa between 2.5 million to 30,000 years ago and spread to other parts of the world. Neanderthals and Cro-Magnons were early humans that inhabited Europe.
- The Cagayan Man, dated to around 500,000 years ago, is considered the first known human inhabitant of the Philippines based on stone tools and animal fossils found at archaeological sites in C
Human evolution (presentation #4 biology l2 project)
This document provides an overview of human evolution. It discusses that genetic studies show primates diverged from other mammals around 85 million years ago. Around 15-20 million years ago, the family Hominidae diverged from gibbons. Evidence for human evolution comes from fossils and DNA analysis, with fossils showing early hominins like Sahelanthropus tchadensis dating back 7 million years. Tool use is a sign of intelligence and may have stimulated brain expansion in human evolution.
E A R L Y H U M A N S
Hominids first appeared around 3 million years ago, including early humans like Lucy who was discovered in 1974. Early humans were able to stand upright unlike apes and had differently jointed hands that allowed them to make tools. Later groups like Homo erectus and Neanderthals were taller and smarter, controlling fire and using stone tools, though Neanderthals remain a mystery as to why they died out. Cro-Magnon man lived in Europe around 30,000 years ago, working together in tribes, hunting with tools and decorating caves with paintings that remain unexplained. Scientists have learned about early humans through fossils and artifacts revealing traces of their lives over millions of years of evolution.
early humans
Hominids first appeared around 3 million years ago, including early humans like Lucy who was discovered in 1974. Early humans were able to stand upright and use tools, distinguishing them from apes. Various human species evolved over millions of years, including Homo erectus who controlled fire, Neanderthals who lived in Europe, and Cro-Magnon man who created cave paintings. Scientists have learned about early humans through fossils and artifacts that provide clues about how different species lived and evolved.
How did we survive and the neanderthals die out
Modern humans originated in Africa and spread to other parts of the world around 35,000 years ago, while Neanderthals evolved in Europe and western Asia. Both species used tools and fire, built shelters, and buried their dead. However, modern humans had larger brains and formed larger social groups, which helped them outcompete Neanderthals. As modern human populations increased in Europe, they interbred with and eventually replaced Neanderthals, who went extinct around 30,000 years ago.
How did we survive and the neanderthals die out (2)
Modern humans originated in Africa and spread to other parts of the world around 35,000 years ago, while Neanderthals evolved in Europe and western Asia. Both species used tools and fire, built shelters, and buried their dead. However, modern humans had larger brains and formed larger social groups, which helped them outcompete Neanderthals. As modern human populations increased in Europe, they interbred with but ultimately replaced Neanderthals, who went extinct around 30,000 years ago.
Human Evolution.pptx
This document provides an overview of human evolution. It discusses how humans are classified within the animal kingdom and fall under the Hominidae family along with apes. The document outlines some of the key events in human evolution, such as humans descending from primitive ape ancestors between 200,000-300,000 years ago and acquiring the ability to speak around 50,000 years ago. It also discusses paleontological evidence that is used to investigate the biological and cultural aspects of early humans, including artifacts, fossilized bones, and the environments in which specimens are found.
4.human evolution
1. The document discusses the history and theories of human evolution from early hominids to modern humans. It traces the major species in our lineage and their defining characteristics.
2. Early hominid species like Australopithecus afarensis and Homo habilis exhibited traits like bipedalism and increased brain size compared to apes. Later species such as Homo erectus and Homo heidelbergensis used more advanced tools and mastered fire.
3. Neanderthals and early Homo sapiens inhabited Europe and Asia around 200,000 years ago before modern humans emerged in Africa around 50,000 years ago. Theories of human evolution are constantly reevaluated
1A. HUMAN EVOLUTION (1).pptx
The document provides an overview of Ayurveda, one of the traditional Indian systems of medicine. Some key points:
- Ayurveda is considered the oldest holistic healing system and dates back over 5,000 years. It views health as a balance between the body, mind and spirit.
- The main texts are the Charaka Samhita, Sushruta Samhita and Ashtang Hridaya Samhita. Ayurveda is based on the concepts of doshas (Vata, Pitta, Kapha), dhatus, malas and agni.
- Health according to Ayurveda is defined as a balanced state of doshas,
1 1 Survival of the Fittest: Neanderthals
The Neanderthals were a subspecies of early humans that lived in Europe and western Asia from around 400,000 to 40,000 years ago. They were well-adapted to cold environments and predominantly carnivorous. While shorter than modern humans, Neanderthals had larger brains and more robust bodies. They made tools, controlled fire, built shelters, hunted in groups, and showed early signs of cultural development. The last Neanderthals are believed to have gone extinct around 25,000 years ago, possibly due to competition with modern humans, violent climate change, or interbreeding when Homo sapiens moved into their habitats.
Hominid 2
Human evolution occurred over millions of years through a series of gradual changes from early hominid species like Sahelanthropus tchadensis around 7 million years ago to modern Homo sapiens. Key stages included Australopithecus afarensis that lived 2.9-3.9 million years ago, Homo erectus that used tools around 1.8 million years ago, and Homo sapiens neanderthalensis that lived 400,000 to 40,000 years ago. Traits like bipedalism, increased brain size, tool use, and reduced jaws differentiated human species from early primate ancestors over this long period of evolutionary change.
Survival of the Fittest
Neanderthals were a subspecies of early humans that lived in Europe and western Asia from around 400,000 to 40,000 years ago. They were well-adapted to cold environments, with stocky bodies, barrel chests, and strong limbs that allowed them to store body heat. Neanderthals hunted large game like mammoths and lived in shelters constructed from animal bones. While they were physically robust with large brains, modern humans may have outcompeted Neanderthals for resources. The last Neanderthals disappeared around 25,000 years ago, possibly due to climate change or interbreeding with anatomically modern humans, as DNA evidence confirms some mixing occurred.
Neaderthals and us
The document discusses key events in human evolution with a focus on Neanderthals and modern humans. It describes the emergence of Homo heidelbergensis around 500,000 years ago in Africa and notes evidence that modern human anatomy and behavior have deep roots in Africa dating back 150,000-200,000 years. The document also discusses evidence that Neanderthals and modern humans interbred, with present-day non-Africans having around 1-2% Neanderthal DNA, and the extinction of the Neanderthals around 30,000 years ago, possibly due to competition and interbreeding with modern humans.
BIOSYSTEMATICS AND EVOLUTION.pptx
William Golding imagined a prehistoric encounter between Neanderthals and our ancestors, Homo sapiens. In 1955, when he wrote the novel describing a preliterate society gradually exterminated by a more modern civilization, our understanding of this Stone Age encounter was sketchy. Scientists could not even say whether Homo sapiens sapiens had lived at the same time as Neanderthals, or instead were descended from them. But in the last 10 years, a much more complete picture has emerged of what happened--40,000 years ago--when the last two branches of the human family tree met, and one prevailed.
Neanderthals were not as primitive as they are often portrayed in popular culture. They were humans like us, and their brains were at least as big as ours. They were larger and stronger, and were successful hunters of big and small game. They probably even had language, which is generally thought to have arisen between 300,000 and 400,000 years ago. They were, in any case, anatomically capable of speech. Their stocky bodies are thought to have made them well adapted to the northern latitudes and glacial climates of Europe, where they lived for at least 300,000 years--far longer than we have.
Similar to Homo neanderthalensis-sofia-doyaguez.ppt (20)
Unit of Inquiry 4: Where We Are in Place and Time: Early Humans
Unit of Inquiry 4: Where We Are in Place and Time: Early Humans
Human evolution (presentation #4 biology l2 project)
Human evolution (presentation #4 biology l2 project)
How did we survive and the neanderthals die out (2)
How did we survive and the neanderthals die out (2)
Recently uploaded
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...Scintica Instrumentation
Targeting Hsp90 and its pathogen Orthologs with Tethered Inhibitors as a Diagnostic and Therapeutic Strategy for cancer and infectious diseases with Dr. Timothy Haystead.在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Farming systems analysis: what have we learnt?.pptx
Presentation given at the official farewell of Prof Ken Gillet at Wageningen on 13 June 2024
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
Recently uploaded (20)
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Juaristi, Jon. - El canon espanol. El legado de la cultura española a la civi...
Juaristi, Jon. - El canon espanol. El legado de la cultura española a la civi...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
The debris of the ‘last major merger’ is dynamically young
The debris of the ‘last major merger’ is dynamically young
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
The cost of acquiring information by natural selection
The cost of acquiring information by natural selection
Farming systems analysis: what have we learnt?.pptx
Farming systems analysis: what have we learnt?.pptx
Immersive Learning That Works: Research Grounding and Paths Forward
Immersive Learning That Works: Research Grounding and Paths Forward
Compexometric titration/Chelatorphy titration/chelating titration
Compexometric titration/Chelatorphy titration/chelating titration
Homo neanderthalensis-sofia-doyaguez.ppt
- 1. Homo neanderthalensis Present By Chawanakorn chantratip No.5 Pawit Rangsitatsukol NO.6 M.6/11
- 3. When and where they existed ●Neanderthals (Homo neanderthalensis) is an extinct species of the Homo genus that inhabited Europe and parts of western Asia from 230,000 years ago until 28,000 years ago.
- 4. ●During their existence, it is believed that they live simultaneously in the same European territories with the Man of Cro-Magnon (the first modern humans in Europe) for 5,000 years. ●This coexistence has been demonstrated by fossils found in the caves of Châtelperron and the analysis of DNA found in caves of Asturias (El Sidrón).
- 5. Social Behavior ●They lived in organized groups of about thirty members, in caves. ●They used fire and buried dead.
- 6. Characteristics of Homo Neanderthalensis ●Robust skeleton ●Wide pelvis ●Short limbs ●Barrel chest ●Beetle-browed ●Low and sloping forehead ●Prominent face ●Chinless jaw ●Large cranial capacity (1550 cm ³)
- 7. Language There is a lot of controversy about how the Neanderthals communicated: ●Some believe that they had a language similar to ours that included compositional structure and grammatical rules. ●Others argue that they had a less developed language that was closer to the communication system of Apes. According to the archaeologist Steven Mithen, Neanderthals had a communication system that was called "Hmmmm"
- 8. Neanderthals tools ●Like earlier hominids, Neanderthals made and used tools. However, the tools produced by the Neanderthals were much more advanced than those used by their predecessors.
- 9. ●Neanderthals learned to combine different types of stone into a single tool, and they discovered how to use a wide variety of soft and hard stones for specialized tasks.