Reptiles
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This document provides information about reptiles presented by a group including Shamroz Khan, Dastagir Sial, Shoaib Awan, Maher Faisal, and Sohaib Akram. It discusses the characteristics of reptiles including their scales, eggs, and tetrapod anatomy. It also outlines the orders of reptiles such as testudines (turtles), rhynchocephalia, squamata (lizards and snakes), and crocodilia. The document describes some key adaptations reptiles have developed like their snouts, airways, tails, digestive systems, and reproduction abilities.
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Reptilia
This document summarizes the major groups of reptiles. It describes five orders: Sauria (lizards), Serpentes (snakes), Testudines (turtles), Crocodylia (crocodiles), and Rhynchocephalia (tuataras). It provides key characteristics of reptiles such as having scaly skin, laying amniotic eggs, and being ectothermic. Additionally, it highlights unique features of different reptile groups, including snakes' specialized anatomy for swallowing large prey whole and crocodiles guarding nests until hatchlings emerge.
Classification of reptilia
This document provides a classification of reptiles based on their anatomical features. It discusses the five subclasses of reptiles: Anapsida, Euryapsida, Parapsida, Synapsida, and Diapsida. Within Diapsida are two superorders - Lepidosauria containing lizards and snakes, and Archosauria containing crocodilians. Key characteristics are described for each order, including turtles within Anapsida, lizards and snakes within Lepidosauria, and crocodilians. Temporal bone structure is an important distinguishing feature between subclasses.
Reptiles
Reptiles are cold-blooded animals that first evolved around 330 million years ago. They are covered in scales or scutes and lay amniotic eggs, allowing them to reproduce on land. Reptiles are classified based on characteristics of their skin, skeleton, respiration and other features. There are three major subclasses - Anapsida which includes modern turtles, Synapsida which are mammal-like reptiles, and Diapsida which is the largest group and includes lizards, snakes and crocodilians. Orders within these subclasses differ in traits like teeth, limbs and diet. Reptiles inhabit diverse habitats globally except Antarctica, with some limitations due to their inability to regulate body temperature.
20. Class Reptilia Notes
The document discusses the class Reptilia and its three orders: Testudines (turtles, tortoises and terrapins), Squamata (snakes, lizards, amphibians) and Crocodilia (crocodiles). It notes that reptiles are ectothermic, lay eggs, have scales and breathe air. It provides details on sea turtles, marine iguanas, sea snakes and saltwater crocodiles. It also discusses threats facing some reptile species like habitat loss and overexploitation.
Amniote origins and nonavian reptiles
Amniotes evolved an amniotic egg with extraembryonic membranes that allowed development on land, freeing them from dependence on water. Early amniotes diversified into three skull types. Modern nonavian reptiles include turtles, squamates (lizards and snakes), tuataras, and crocodilians. They have adaptations like thicker skins, stronger jaws, and efficient nitrogen excretion that allowed exploitation of terrestrial niches.
Class Reptilia
The document summarizes key characteristics of reptiles including turtles, lizards, snakes, crocodilians, and tuatara. It discusses their ectothermic nature, amniotic eggs, scales, and distribution on every continent except Antarctica. Additionally, it provides details on orders Squamata (lizards and snakes), Chelonia (turtles and tortoises), Crocodilia (crocodilians), and Rhynchocephalia (tuatara). The tuatara are notable as the sole surviving member of their order, with a remaining population of 50,000 to 100,000 on New Zealand islands.
Reptilia bobby
This document summarizes characteristics of reptiles and provides details on three orders of reptiles: Testudines (turtles, tortoises, terrapins), Squamata (lizards, snakes), and Crocodilia (crocodiles, alligators, caimans). Reptiles are cold-blooded vertebrates that breathe with lungs, lay eggs, and have scales. Turtles have a hard shell fused to their backbone and flippers instead of legs. Tortoises live on land while terrapins live near water. Squamata includes lizards, which shed skin in patches, and snakes, which shed in one piece. Crocodilia can regulate temperature and care for young.
Reptilia classification by deepak rawal
This document summarizes a presentation about reptile classification given by Deepak Rawal. It discusses the general characteristics of reptiles and provides a classification of living reptiles into four orders: Chelonia (turtles), Rhynchocephalia (tuatara), Crocodilia (crocodiles), and Squamata (lizards and snakes). Within Squamata, lizards are classified under Lacertilia and snakes under Ophidia. Key differences between lizards and snakes are outlined. Information on poisonous and non-poisonous snakes in India is also provided.
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Reptilia
This document summarizes the major groups of reptiles. It describes five orders: Sauria (lizards), Serpentes (snakes), Testudines (turtles), Crocodylia (crocodiles), and Rhynchocephalia (tuataras). It provides key characteristics of reptiles such as having scaly skin, laying amniotic eggs, and being ectothermic. Additionally, it highlights unique features of different reptile groups, including snakes' specialized anatomy for swallowing large prey whole and crocodiles guarding nests until hatchlings emerge.
Classification of reptilia
This document provides a classification of reptiles based on their anatomical features. It discusses the five subclasses of reptiles: Anapsida, Euryapsida, Parapsida, Synapsida, and Diapsida. Within Diapsida are two superorders - Lepidosauria containing lizards and snakes, and Archosauria containing crocodilians. Key characteristics are described for each order, including turtles within Anapsida, lizards and snakes within Lepidosauria, and crocodilians. Temporal bone structure is an important distinguishing feature between subclasses.
Reptiles
Reptiles are cold-blooded animals that first evolved around 330 million years ago. They are covered in scales or scutes and lay amniotic eggs, allowing them to reproduce on land. Reptiles are classified based on characteristics of their skin, skeleton, respiration and other features. There are three major subclasses - Anapsida which includes modern turtles, Synapsida which are mammal-like reptiles, and Diapsida which is the largest group and includes lizards, snakes and crocodilians. Orders within these subclasses differ in traits like teeth, limbs and diet. Reptiles inhabit diverse habitats globally except Antarctica, with some limitations due to their inability to regulate body temperature.
20. Class Reptilia Notes
The document discusses the class Reptilia and its three orders: Testudines (turtles, tortoises and terrapins), Squamata (snakes, lizards, amphibians) and Crocodilia (crocodiles). It notes that reptiles are ectothermic, lay eggs, have scales and breathe air. It provides details on sea turtles, marine iguanas, sea snakes and saltwater crocodiles. It also discusses threats facing some reptile species like habitat loss and overexploitation.
Amniote origins and nonavian reptiles
Amniotes evolved an amniotic egg with extraembryonic membranes that allowed development on land, freeing them from dependence on water. Early amniotes diversified into three skull types. Modern nonavian reptiles include turtles, squamates (lizards and snakes), tuataras, and crocodilians. They have adaptations like thicker skins, stronger jaws, and efficient nitrogen excretion that allowed exploitation of terrestrial niches.
Class Reptilia
The document summarizes key characteristics of reptiles including turtles, lizards, snakes, crocodilians, and tuatara. It discusses their ectothermic nature, amniotic eggs, scales, and distribution on every continent except Antarctica. Additionally, it provides details on orders Squamata (lizards and snakes), Chelonia (turtles and tortoises), Crocodilia (crocodilians), and Rhynchocephalia (tuatara). The tuatara are notable as the sole surviving member of their order, with a remaining population of 50,000 to 100,000 on New Zealand islands.
Reptilia bobby
This document summarizes characteristics of reptiles and provides details on three orders of reptiles: Testudines (turtles, tortoises, terrapins), Squamata (lizards, snakes), and Crocodilia (crocodiles, alligators, caimans). Reptiles are cold-blooded vertebrates that breathe with lungs, lay eggs, and have scales. Turtles have a hard shell fused to their backbone and flippers instead of legs. Tortoises live on land while terrapins live near water. Squamata includes lizards, which shed skin in patches, and snakes, which shed in one piece. Crocodilia can regulate temperature and care for young.
Reptilia classification by deepak rawal
This document summarizes a presentation about reptile classification given by Deepak Rawal. It discusses the general characteristics of reptiles and provides a classification of living reptiles into four orders: Chelonia (turtles), Rhynchocephalia (tuatara), Crocodilia (crocodiles), and Squamata (lizards and snakes). Within Squamata, lizards are classified under Lacertilia and snakes under Ophidia. Key differences between lizards and snakes are outlined. Information on poisonous and non-poisonous snakes in India is also provided.
Reptiles
This document discusses the characteristics and classification of reptiles. It begins by introducing duckweed and materials needed for an investigative project. It then covers the defining features of reptiles, including having scales or scutes, being ectothermic, and having three-chambered hearts except in crocodiles. The document proceeds to outline the four orders of reptiles - Crocodilia, Testudines, Squamata, and Rhynchocephalia - providing key details about each order and the types of reptiles that fall within each order.
The reptile
Reptiles have scales that retain moisture and lay amniotic eggs adapted for land. They live in varied habitats except very cold areas as they are ectothermic. All reptiles share scaly skin, claws, lungs, and lay amniotic eggs. Adaptations like strong skeletons and claws allow movement on land while highly developed vision aids predation and predator avoidance. Ectothermy limits habitats but basking and shade-seeking regulate temperature. Lungs and partially divided hearts aid gas exchange. Reproduction is usually oviparous but some are ovoviviparous, protecting eggs inside females.
Classification of reptiles
Reptiles are a group (Reptilia) of tetrapod animals comprising today's turtles, ... The reptiles were, from the outset of classification, grouped with the amphibians. ... between lizards, birds, and their relatives on the one hand (Sauropsida)
Reptilian characters
Reptiles are a diverse group of terrestrial animals that include lizards, snakes, turtles, crocodiles, and extinct dinosaurs. They originated from amphibian ancestors and flourished during the Mesozoic era. Key characteristics include laying eggs on land, scaly skin, a single ventricle heart, and uric acid waste excretion. Reptiles were the first vertebrates to fully colonize dry land through adaptations like amniotic eggs.
Reptiles
The presentation provides an overview of reptiles including their classification and characteristics. It discusses the six subclasses of reptiles - Anapsida, Synapsida, Euryapsida, Ichthyopterygia, Lepidosauria, and Archosauria. Each subclass contains multiple orders of reptiles that are described in terms of their distinguishing physical attributes and examples. In addition, general characteristics of reptiles such as dry scaly skin, claws, and egg-laying are outlined. The presentation aims to inform the audience about the diverse taxonomic groups within the class Reptilia.
Classification of reptiles
The document classifies reptiles into four orders: Testudines (turtles and tortoises), Rhynochophalia (tuataras), Crocodilia (crocodiles and alligators), and Squamata (lizards and snakes). It provides details on the characteristics of each order, such as their skin, limbs, teeth, eggs, and examples of species. The orders are distinguished from each other by these anatomical features and characteristics.
Reptiles class
1. Reptiles originated from primitive labyrinthodont amphibians during the Carboniferous period and underwent two major periods of adaptive radiation - in the Paleozoic and Mesozoic eras.
2. During the Mesozoic era, reptiles dominated land, sea and air, represented by 16 orders, including dinosaurs, pterosaurs, marine reptiles and the ancestors of modern crocodiles and birds.
3. Transitional fossils like Archaeopteryx provide evidence that birds evolved from reptiles with feathers and wishbones evolving among traits shared with modern avians.
Calotes (garden lizard)
garden lizard also commonly known as girgit are able to change their colours in response to the environment
Reptiles
Reptiles are cold-blooded animals that include approximately 7,900 species living in a variety of habitats. They are characterized by having scaly skin, lungs used for breathing, and being egg-laying or live-bearing. The document describes the key organ systems of reptiles including their integumentary system made of thick, protective scaly skin; digestive system which varies depending on diet; circulatory system with two circulatory loops; and orders which classify reptiles such as snakes, lizards, turtles, crocodiles, and tuataras.
Reptiles
Reptiles are found all over the world and are descended from dinosaurs. There are several types of reptiles including snakes, turtles, lizards, crocodiles, and alligators. Reptiles share certain traits such as having backbones, being covered in scales, being cold-blooded, and producing shelled eggs. While often seen as pests, reptiles display important behaviors like seeking heat, finding shelter, making noises, and more. In reality, reptiles are diverse animals that are similar to fish, mammals, and birds in many ways.
Aves general characters
Birds are feathered, warm-blooded vertebrates that are believed to have evolved from small feathered dinosaurs. They have light, pneumatic bones and powerful flight muscles attached to their sternum. Birds reproduce through internal fertilization, with males transferring sperm to females through a cloacal kiss and females later laying fertilized eggs.
Reptiles ppt
Reptiles are cold-blooded animals that can survive on land and in water. There are four main groups of reptiles: crocodiles, lizards, turtles, and snakes. Crocodiles are found in tropical environments and can stay underwater for over an hour. Lizards come in many varieties and shed their skin as they grow. Turtles have a hard shell and can retract their head inside. Snakes shed their skin several times per year as they grow and are carnivorous.
Arthropod classification
This document classifies arthropods into three subphyla: Trilobitomorpha, Chelicerata, and Mandibulata. Trilobites were diverse marine invertebrates that lived 500-250 million years ago. Chelicerates include spiders, scorpions, ticks, and sea spiders and have two body segments, pedipalps for holding prey, and book lungs. Mandibulatans include insects, centipedes, millipedes, and crustaceans and have mandibles for chewing and three body segments in insects.
Pisces general characters and classification - copy
This document provides information on the general characteristics of fishes. It discusses:
1) Fishes are cold-blooded aquatic vertebrates that first evolved in the Silurian period and increased in number during the Devonian period.
2) They have a streamlined body with scales or plates, paired and unpaired fins, breathe through gills, and vary greatly in size.
3) Fishes are classified into three classes - Placodermi, Elasmobranchii, and Osteichthyes - based on their skeleton composition and other features.
Amphibia[1]
Class Amphibia includes over 5,400 species of caecilians, salamanders, frogs, and toads that typically live near water. Many amphibian species are threatened due to habitat loss and other causes. Amphibians have permeable skin that aids respiration and protection, and powerful hind legs that allow them to leap long distances.
Amphibians
Amphibians evolved from lobe-finned fishes around 345 million years ago. They can live both on land and in water, using various organs for respiration in different environments. There are over 2,000 living amphibian species classified into four orders: Anura (frogs and toads), Urodela (salamanders), Trachystoma (mud eels), and Apoda (caecilians). Amphibians have key adaptations like permeable skin and an aquatic larval stage that allow them to transition between aquatic and terrestrial habitats.
Lizard Notes
Lizards make up 60% of reptiles and occur on all continents except Antarctica. They are typically identified by their elongated body and four limbs with a long tail. Lizards vary tremendously in size, from the smallest gecko at 1.5 inches to the largest Komodo dragon at 10 feet. Lizards tails serve different purposes depending on the species, such as providing extra grip for chameleons or breaking off as a defense mechanism to escape predators for other species. Monitor lizards are considered the most advanced lizards as the direct ancestors of snakes, shown through traits like their long, serpentine body and forked tongue.
Reptiles
Reptiles were the first terrestrial vertebrates and dominated during the Mesozoic era. There are around 7,000 reptile species worldwide today, with the most successful group being squamates (snakes and lizards). Reptiles are characterized by scaly skin, laying amniotic eggs, and various anatomical adaptations for living on land such as efficient lungs and kidneys. The four surviving orders are squamates, crocodilians, turtles, and the tuatara; turtles are notable for their protective shells.
Skull typpes
This document summarizes the different types of skulls found in reptiles:
- Anapsid skulls, found in primitive reptiles and turtles, have no temporal fenestrae.
- Euryapsid skulls, found in marine reptiles like plesiosaurs, have a single pair of fenestrae high on the skull.
- Parapsid skulls, seen in ichthyosaurs, are similar but with additional bones bordering the single fenestrae.
- Diapsid skulls, common in living reptiles and dinosaurs, contain two pairs of fenestrae on each side of the skull.
- Synapsid skulls, seen in early mammal-like reptiles
Vertebrates .
Vertebrates are a subphylum of chordates with backbones. They are classified into groups including fish, amphibians, reptiles, birds, and mammals. Key characteristics include skulls, vertebrae enclosing the spinal cord, and paired limbs in many land-dwelling forms. Vertebrates display a wide diversity of adaptations for locomotion, nutrition, and reproduction in various environments.
Reptiles
son animales vertebrados que se caracterizan por su especial manera de andar, ya que andan arrastrando el vientre por el suelo. Su piel está recubierta de escamas o tienen caparazón (las tortugas). Su respiración es pulmonar. Tienen circulación doble e incompleta por no haber separación total entre la sangre arterial y la venosa. Son carnívoros y cazadores. Tienen dientes que cortan pero no mastican y en algunos casos son venenosos. La temperatura del cuerpo es muy variable.
Reptiles
Este documento resume las características principales de los reptiles. Explica que los reptiles son vertebrados de piel gruesa y escamosa, de sangre fría y que no dejan de crecer. Se reproducen poniendo huevos que dejan en lugares cálidos para su desarrollo. Incluye ejemplos de tipos de reptiles como cocodrilos, serpientes y lagartos, y describe brevemente su reproducción, alimentación y hábitat.
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Reptiles
This document discusses the characteristics and classification of reptiles. It begins by introducing duckweed and materials needed for an investigative project. It then covers the defining features of reptiles, including having scales or scutes, being ectothermic, and having three-chambered hearts except in crocodiles. The document proceeds to outline the four orders of reptiles - Crocodilia, Testudines, Squamata, and Rhynchocephalia - providing key details about each order and the types of reptiles that fall within each order.
The reptile
Reptiles have scales that retain moisture and lay amniotic eggs adapted for land. They live in varied habitats except very cold areas as they are ectothermic. All reptiles share scaly skin, claws, lungs, and lay amniotic eggs. Adaptations like strong skeletons and claws allow movement on land while highly developed vision aids predation and predator avoidance. Ectothermy limits habitats but basking and shade-seeking regulate temperature. Lungs and partially divided hearts aid gas exchange. Reproduction is usually oviparous but some are ovoviviparous, protecting eggs inside females.
Classification of reptiles
Reptiles are a group (Reptilia) of tetrapod animals comprising today's turtles, ... The reptiles were, from the outset of classification, grouped with the amphibians. ... between lizards, birds, and their relatives on the one hand (Sauropsida)
Reptilian characters
Reptiles are a diverse group of terrestrial animals that include lizards, snakes, turtles, crocodiles, and extinct dinosaurs. They originated from amphibian ancestors and flourished during the Mesozoic era. Key characteristics include laying eggs on land, scaly skin, a single ventricle heart, and uric acid waste excretion. Reptiles were the first vertebrates to fully colonize dry land through adaptations like amniotic eggs.
Reptiles
The presentation provides an overview of reptiles including their classification and characteristics. It discusses the six subclasses of reptiles - Anapsida, Synapsida, Euryapsida, Ichthyopterygia, Lepidosauria, and Archosauria. Each subclass contains multiple orders of reptiles that are described in terms of their distinguishing physical attributes and examples. In addition, general characteristics of reptiles such as dry scaly skin, claws, and egg-laying are outlined. The presentation aims to inform the audience about the diverse taxonomic groups within the class Reptilia.
Classification of reptiles
The document classifies reptiles into four orders: Testudines (turtles and tortoises), Rhynochophalia (tuataras), Crocodilia (crocodiles and alligators), and Squamata (lizards and snakes). It provides details on the characteristics of each order, such as their skin, limbs, teeth, eggs, and examples of species. The orders are distinguished from each other by these anatomical features and characteristics.
Reptiles class
1. Reptiles originated from primitive labyrinthodont amphibians during the Carboniferous period and underwent two major periods of adaptive radiation - in the Paleozoic and Mesozoic eras.
2. During the Mesozoic era, reptiles dominated land, sea and air, represented by 16 orders, including dinosaurs, pterosaurs, marine reptiles and the ancestors of modern crocodiles and birds.
3. Transitional fossils like Archaeopteryx provide evidence that birds evolved from reptiles with feathers and wishbones evolving among traits shared with modern avians.
Calotes (garden lizard)
garden lizard also commonly known as girgit are able to change their colours in response to the environment
Reptiles
Reptiles are cold-blooded animals that include approximately 7,900 species living in a variety of habitats. They are characterized by having scaly skin, lungs used for breathing, and being egg-laying or live-bearing. The document describes the key organ systems of reptiles including their integumentary system made of thick, protective scaly skin; digestive system which varies depending on diet; circulatory system with two circulatory loops; and orders which classify reptiles such as snakes, lizards, turtles, crocodiles, and tuataras.
Reptiles
Reptiles are found all over the world and are descended from dinosaurs. There are several types of reptiles including snakes, turtles, lizards, crocodiles, and alligators. Reptiles share certain traits such as having backbones, being covered in scales, being cold-blooded, and producing shelled eggs. While often seen as pests, reptiles display important behaviors like seeking heat, finding shelter, making noises, and more. In reality, reptiles are diverse animals that are similar to fish, mammals, and birds in many ways.
Aves general characters
Birds are feathered, warm-blooded vertebrates that are believed to have evolved from small feathered dinosaurs. They have light, pneumatic bones and powerful flight muscles attached to their sternum. Birds reproduce through internal fertilization, with males transferring sperm to females through a cloacal kiss and females later laying fertilized eggs.
Reptiles ppt
Reptiles are cold-blooded animals that can survive on land and in water. There are four main groups of reptiles: crocodiles, lizards, turtles, and snakes. Crocodiles are found in tropical environments and can stay underwater for over an hour. Lizards come in many varieties and shed their skin as they grow. Turtles have a hard shell and can retract their head inside. Snakes shed their skin several times per year as they grow and are carnivorous.
Arthropod classification
This document classifies arthropods into three subphyla: Trilobitomorpha, Chelicerata, and Mandibulata. Trilobites were diverse marine invertebrates that lived 500-250 million years ago. Chelicerates include spiders, scorpions, ticks, and sea spiders and have two body segments, pedipalps for holding prey, and book lungs. Mandibulatans include insects, centipedes, millipedes, and crustaceans and have mandibles for chewing and three body segments in insects.
Pisces general characters and classification - copy
This document provides information on the general characteristics of fishes. It discusses:
1) Fishes are cold-blooded aquatic vertebrates that first evolved in the Silurian period and increased in number during the Devonian period.
2) They have a streamlined body with scales or plates, paired and unpaired fins, breathe through gills, and vary greatly in size.
3) Fishes are classified into three classes - Placodermi, Elasmobranchii, and Osteichthyes - based on their skeleton composition and other features.
Amphibia[1]
Class Amphibia includes over 5,400 species of caecilians, salamanders, frogs, and toads that typically live near water. Many amphibian species are threatened due to habitat loss and other causes. Amphibians have permeable skin that aids respiration and protection, and powerful hind legs that allow them to leap long distances.
Amphibians
Amphibians evolved from lobe-finned fishes around 345 million years ago. They can live both on land and in water, using various organs for respiration in different environments. There are over 2,000 living amphibian species classified into four orders: Anura (frogs and toads), Urodela (salamanders), Trachystoma (mud eels), and Apoda (caecilians). Amphibians have key adaptations like permeable skin and an aquatic larval stage that allow them to transition between aquatic and terrestrial habitats.
Lizard Notes
Lizards make up 60% of reptiles and occur on all continents except Antarctica. They are typically identified by their elongated body and four limbs with a long tail. Lizards vary tremendously in size, from the smallest gecko at 1.5 inches to the largest Komodo dragon at 10 feet. Lizards tails serve different purposes depending on the species, such as providing extra grip for chameleons or breaking off as a defense mechanism to escape predators for other species. Monitor lizards are considered the most advanced lizards as the direct ancestors of snakes, shown through traits like their long, serpentine body and forked tongue.
Reptiles
Reptiles were the first terrestrial vertebrates and dominated during the Mesozoic era. There are around 7,000 reptile species worldwide today, with the most successful group being squamates (snakes and lizards). Reptiles are characterized by scaly skin, laying amniotic eggs, and various anatomical adaptations for living on land such as efficient lungs and kidneys. The four surviving orders are squamates, crocodilians, turtles, and the tuatara; turtles are notable for their protective shells.
Skull typpes
This document summarizes the different types of skulls found in reptiles:
- Anapsid skulls, found in primitive reptiles and turtles, have no temporal fenestrae.
- Euryapsid skulls, found in marine reptiles like plesiosaurs, have a single pair of fenestrae high on the skull.
- Parapsid skulls, seen in ichthyosaurs, are similar but with additional bones bordering the single fenestrae.
- Diapsid skulls, common in living reptiles and dinosaurs, contain two pairs of fenestrae on each side of the skull.
- Synapsid skulls, seen in early mammal-like reptiles
Vertebrates .
Vertebrates are a subphylum of chordates with backbones. They are classified into groups including fish, amphibians, reptiles, birds, and mammals. Key characteristics include skulls, vertebrae enclosing the spinal cord, and paired limbs in many land-dwelling forms. Vertebrates display a wide diversity of adaptations for locomotion, nutrition, and reproduction in various environments.
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Pisces general characters and classification - copy
Pisces general characters and classification - copy
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son animales vertebrados que se caracterizan por su especial manera de andar, ya que andan arrastrando el vientre por el suelo. Su piel está recubierta de escamas o tienen caparazón (las tortugas). Su respiración es pulmonar. Tienen circulación doble e incompleta por no haber separación total entre la sangre arterial y la venosa. Son carnívoros y cazadores. Tienen dientes que cortan pero no mastican y en algunos casos son venenosos. La temperatura del cuerpo es muy variable.
Reptiles
Este documento resume las características principales de los reptiles. Explica que los reptiles son vertebrados de piel gruesa y escamosa, de sangre fría y que no dejan de crecer. Se reproducen poniendo huevos que dejan en lugares cálidos para su desarrollo. Incluye ejemplos de tipos de reptiles como cocodrilos, serpientes y lagartos, y describe brevemente su reproducción, alimentación y hábitat.
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Presentacion Reptiles
Los reptiles son animales vertebrados antiguos que incluyen lagartos, serpientes, tortugas, cocodrilos y caimanes. Se reproducen principalmente mediante huevos y su época de reproducción comienza en primavera. Habitan en regiones ecuatoriales donde el calor ambiental les permite realizar procesos digestivos correctamente.
Anfibios y reptiles
Presentación ppt de anfibios y reptiles para alumnos de 1º bachillerato. Se explican características generales de ambos grupos, así como de los diferentes órdenes
Reptiles
Los reptiles se originaron hace unos 270 millones de años a partir de anfibios primitivos. Tienen escamas o placas córneas que cubren su piel y ponen huevos con cáscara. Incluyen cocodrilos, serpientes, lagartos, tuátaras y tortugas. Las tortugas tienen un caparazón óseo y perdieron sus dientes, mientras que las serpientes no tienen extremidades y tienen cuerpos alargados.
Reptiles
Los reptiles son vertebrados terrestres con cuerpo cubierto de escamas o placas. Tienen sangre fría y temperatura corporal variable. La mayoría son carnívoros y se reproducen mediante huevos, aunque algunas serpientes son ovovivíparas. El ciclo de vida típico de los reptiles comienza con un huevo que eclosiona para dar lugar a una cría, la cual crece hasta la edad adulta cuando se reproduce.
Reptiles
Los reptiles son vertebrados ectotérmicos cubiertos de piel seca y escamosa. Existen cuatro órdenes principales de reptiles: Rhynchocephalia (tuatara), Chelonia (tortugas), Crocodilia (cocodrilos y lagartos) y Squamata (serpientes y lagartijos). Los reptiles se han adaptado completamente a la vida terrestre y sus huevos tienen cáscaras que evitan la desecación. Dentro de los órdenes se encuentran más de 250 especies de tortugas, cocodrilos,
Reptiles
Este documento proporciona información sobre los reptiles. Explica que los reptiles son animales vertebrados que se originaron hace unos 310 millones de años a partir de los anfibios. Describe las principales características de los reptiles, como su piel escamosa y que son animales de sangre fría. También cubre aspectos como dónde viven los reptiles, qué comen, cómo se reproducen y los principales grupos de reptiles como lagartos, serpientes, tortugas y cocodrilos. Finalmente, señala que algunas especies de reptiles
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Reptiles
Los reptiles aparecieron hace unos 340 millones de años. Se caracterizan por tener escamas que recubren sus cuerpos. Fueron muy abundantes durante la Era de los Reptiles en el Mesozoico, cuando surgieron dinosaurios, pterosaurios e ictiosaurios. En Ecuador se han registrado 431 especies de reptiles, lo que ubica al país entre los 10 con mayor diversidad de reptiles en el mundo.
Los reptiles
Los reptiles son un grupo de vertebrados amniotas cubiertos de escamas. Incluyen serpientes, lagartos, tortugas y cocodrilos. Se caracterizan por tener cuerpo cubierto de escamas, extremidades cortas o ausentes, sangre fría, huevos con cáscara dura y dos cavidades cardíacas. Se alimentan de otros animales, plantas o ambos, y se reproducen mediante huevos protegidos con cáscara.
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phylogeny of class Reptilia vertebrates.pptx
Reptiles first evolved from amphibians over 300 million years ago. They experienced major changes and declines at the end of the Mesozoic era due to environmental changes and competition from birds and mammals. Today there are only four surviving orders of reptiles - turtles, crocodiles, lizards, and snakes. Reptiles are distinguished by having scales, laying amniotic eggs, and being cold-blooded.
phylogeny of class Reptilia vertebrates.pptx
Reptiles first evolved from amphibians over 300 million years ago. They experienced major changes and declines at the end of the Mesozoic era due to environmental changes and competition from birds and mammals. Today there are only four surviving orders of reptiles - turtles, crocodiles, lizards, and snakes. Reptiles are distinguished by having scales, laying amniotic eggs, and being cold-blooded.
The vertebrates
Vertebrates are chordates that have a backbone or spine replacing their notochord as they develop. They are divided into several classes: Agnatha (jawless fish), Chondrichthyes (cartilage fish like sharks), Osteichthyes (bony fish), Amphibia (amphibians), Reptilia (reptiles), Aves (birds), and Mammalia (mammals). Vertebrates are characterized by features like an internal skeleton, vertebral column, cranium, and organ systems like respiratory, circulatory, and digestive. The major groups of vertebrates first appeared between 550-150 million years ago.
Chapter five Aminots.ppt
The document summarizes amniotes and their evolution. It discusses:
1) Amniotes are tetrapods with an amniotic egg, including mammals, reptiles, and birds. The amniotic egg allowed reproduction on land.
2) Modern amniotes are classified as synapsids (mammals), anapsids (turtles), or diapsids (reptiles and birds). Diapsids split into lepidosaurs and archosaurs.
3) Reptiles evolved from amphibians and gained adaptations like scaly skin, internal fertilization, and efficient lungs and kidneys for land survival.
vertebrate and invertebrate fossils
This document provides an overview of invertebrate and vertebrate fossils found in Ohio. It describes that vertebrate fossils are rare but can include fish, amphibians, reptiles, dinosaurs, birds, and mammals. Invertebrate fossils are more common and can include brachiopods, trilobites, graptolites, corals, snails, echinoids, and crinoids. The document provides examples of representative fossils from each group.
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This document provides an overview of reptiles, including their general characteristics, classification, and descriptions of key orders. It discusses how reptiles evolved from amphibians, their adaptations for land life, and defining features. The major groups are Anapsida, Diapsida, and several extinct subclasses. Descriptions are given for the orders of turtles, tuatara, lizards/snakes, and crocodiles.
Reptiles a look.ppt
Reptiles first evolved around 310 million years ago and were the first vertebrates to make a complete transition to life on land. They developed several key adaptations for terrestrial living including protective scales, lungs for breathing air, waterproof skins, and amniotic eggs that allowed for internal fertilization and development of embryos on land. Over time reptiles diversified into many forms and dominated during the Mesozoic era. Today there are four major orders of reptiles - turtles, crocodilians, lizards, and snakes. Snakes evolved from lizards and developed specialized adaptations for movement, feeding, defense, and reproduction on land.
The reptiles
The document discusses the four main groups of reptiles: crocodiles, lizards, turtles, and snakes. It provides details on their defining characteristics, habitats, behaviors, and evolution. Key points include:
1) Reptiles lay amniotic eggs which enabled their success on land by protecting the embryo and facilitating gas exchange.
2) The four living clades of reptiles are crocodiles, tuataras, lizards and snakes (Squamata), and turtles (Testudines).
3) Traditional and cladistic taxonomic classifications disagree on whether birds and mammals should be considered reptiles.
Reptiles, Birds And Mammals
The document discusses three key adaptations - amniotic eggs, internal fertilization, and water-tight skin - that allowed reptiles, birds, and mammals to thrive on land. It then describes the diversity of living reptiles, birds, and mammals, including their physical traits and behaviors that enabled each group to occupy different ecological niches on land and aerial habitats. The document traces the evolutionary history and relationships between these groups, noting that birds and crocodilians are more closely related to dinosaurs, while mammals evolved from reptile ancestors called therapsids.
Mollusca.pptx
This document provides information about the phylum Mollusca. It discusses the 7 main classes of molluscs:
1) Monoplacophora - Contains only the genus Neopilina and is considered a "living fossil".
2) Aplacophora - Wormlike molluscs without a shell.
3) Polyplacophora - Contains chitons which have 8 overlapping shell plates.
4) Scaphopoda - Marine molluscs known as tusk shells that burrow into sediments.
5) Gastropoda - The largest class containing snails and slugs.
6) Bivalvia - Contains clams, oyst
Dinosaurs
Dinosaurs lived on Earth over 215 million years ago, ruling the planet for nearly 150 million years before going extinct 65 million years ago. Paleontologists study dinosaur fossils found in rock to learn about their existence, carefully extracting and analyzing the remains. Major types of dinosaurs included duck-billed hadrosaurs like Anatotitan, three-horned Triceratops, ostrich-like Gallimimus, armored Minmi, large meat-eating Tyrannosaurs, and the flying Pteranodon.
Evolution of reptiles
The document discusses the evolution of reptiles from amphibians. Key developments included the evolution of the amniotic egg, which allowed for reproduction on land, as well as various anatomical changes like the development of scales and scutes on the skin. Major groups of reptiles evolved, like turtles, lizards, snakes, and the diapsids which were progenitors of birds and mammals. Reptiles diversified during the Mesozoic era but three mass extinction events occurred. Overall the document traces the major transitions that occurred as tetrapods evolved into land-dwelling reptiles.
Fishes Zoology Report
The first vertebrates were jawless fishlike animals that appeared over 500 million years ago. They had cartilaginous internal skeletons. Ostracoderms had bony armor. Early vertebrates evolved in both marine and freshwater environments. Modern fish classes include cartilaginous Chondrichthyes like sharks and bony Osteichthyes including Sarcopterygii with lungs and Actinopterygii with ray fins, including most common fish species.
Kingdom Animalia Phylum Chordata Class Reptalia
In order for us to understand how all living organisms are related, they are arranged into different groups. The more features that a group of animals share, the more specific the group is. Animals are given scientific names so that people all around the world can communicate about animals, no matter what language they speak (these names are traditionally Latin words). Animals belong to a number of different groups, starting with the animal kingdom.
Kingdom
All living organisms are first placed into different kingdoms. There are five different kingdoms to classify life on Earth, which are Animals, Plants, Fungi, Bacteria, and Protists (single-celled organisms).
Phylum
The animal kingdom is divided into 40 smaller groups, known as phylum. Here, animals are grouped by their main features. Animals usually fall into one of five different phylum which are Cnidaria (invertebrates), Chordata (vertebrates), Arthropods, Molluscs and Echinoderms.
Class
The phylum group is then divided into even smaller groups, known as classes. The Chordata (vertebrates) phylum splits up into Mammalia (Mammals), Actinopterygii (Bony Fish), Chondrichthyes (Cartilaginous Fish) , Aves (Birds), Amphibia (Amphibians) and Reptilia (Reptiles).
Order
Each class is divided into small groups again, known as orders. The class Mammalia (Mammals), splits into different groups including Carnivora, Primate, Artiodactyla and Rodentia.
Family
In every order, there are different families of animals which all have very similar features. The Carnivora order breaks into families that include Felidae (Cats), Canidae (Dogs), Ursidae (Bears), and Mustelidae (Weasels).
Genus
Every animal family is then divided into small groups known as genus. Each genus contains animals that have very similar features and are closely related. For example, the Felidae (Cat) family contains genus including Felis (small Cats and domestic Cats), Panthera (Tigers, Leopards, Jaguars and Lions) and Puma (Panthers and Cougars).
Species
Each individual species within the genus is named after it's individual features and characteristics. The names of animals are in Latin so that they can be understood worldwide, and consist of two words. The first word in the name of an animal will be the genus, and the second name indicates the specific species.
Example 1 - Tiger
Kingdom: Animalia (Animal)
Phylum: Chordata (Vertebrate)
Class: Mammalia (Mammal)
Order: Carnivora (Carnivore)
Family: Felidae (Cat)
Genus: Panthera
Species: Panthera tigris (Tiger)
Diversity Of Fish And Amphibians
The document discusses the diversity of chordates and vertebrates. It covers the four key characteristics of vertebrates, including having a notochord, hollow nerve cord, pharyngeal slits, and a tail that extends beyond the anus. It then describes the major groups of fish, including sharks, rays, bony fish, lobe-finned fish, and lungfish. Finally, it discusses the three orders of amphibians: frogs and toads, salamanders and newts, and caecilians.
Marine Mammals
Marine mammals include cetaceans, sirenians, and carnivores that rely on the ocean for existence. They are warm-blooded, breathe air, bear live young, and nurse with milk. Cetaceans include whales, dolphins, and porpoises that communicate and echolocate. Sirenians such as manatees and dugongs graze on aquatic plants. Carnivores include three families of pinnipeds (seals, sea lions, walrus), polar bears, and two families of otters. Physiological adaptations allow marine mammals to dive, thermoregulate, and locomote in water. Many species face threats and some are endangered.
Origin and Evolution of Mammals
The document discusses the origin and evolution of mammals. It describes two main theories for the ancestry of mammals - through amphibians or reptiles. While amphibian ancestry was proposed, reptilian ancestry is now widely accepted based on fossil evidence. Many characteristics of early mammal-like reptiles called therapsids were mammalian. True mammals first appeared in the Jurassic period but remained small until after the extinction of dinosaurs. When ecological niches opened up in the Cenozoic era, mammals underwent adaptive radiations into various forms through modifications of limbs, teeth and other features for different habitats like trees, ground, burrows, water and air. Convergent evolution also led to similarities between unrelated mammals adapting to the same nic
VERTEBRATES COMPLETE LECTUR E NOTES.pptx
This document discusses the phylogeny and morphology of vertebrates and amphibians. It covers the five classes of vertebrates which are fishes, amphibians, reptiles, birds, and mammals. For fishes, it describes the two types of modern fishes and discusses characteristics of cartilaginous fishes. It also covers taxonomy of fishes and adaptations of body forms. For amphibians, it discusses characteristics and challenges of terrestrial life, orders of amphibians, and patterns of reproduction. Finally, it covers characteristics of reptiles, taxonomy of reptiles including orders, and families of snakes.
VERTEBRATES COMPLETE LECTURE NOTES.pptxs
This document discusses the phylogeny and morphology of vertebrates and amphibians. It covers the five classes of vertebrates which are fishes, amphibians, reptiles, birds, and mammals. For fishes, it describes the two types of modern fishes and provides characteristics of cartilaginous fishes. It also discusses the classification and characteristics of amphibians and reptiles, including how they evolved and adapted from aquatic to terrestrial environments. Key orders within each group are identified and compared.
Reptalia 1.pptx
Reptiles are air-breathing vertebrates that first adapted to life on land. They are classified as belonging to the class Reptilia, which includes over 10,000 species ranging from snakes and lizards to crocodiles and turtles. Reptiles are divided into three main groups based on skull structure: anapsids having a solid skull roof; parapsids having one skull opening; and diapsids having two skull openings. Diapsids are the most diverse and include dinosaurs, pterosaurs, as well as modern reptile orders like squamates, crocodilians, turtles, and the tuatara.
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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.
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Reptiles
- 3. Group Members • Shamroz Khan • Dastagir Sial • Shoaib Awan • Maher Faisal • Sohaib Akram
- 5. Contents Reptiles(introduction) History Characteristics of reptiles Order testudines Order rhynchocephalia Order squamata Order crocodilia Adaptation
- 6. Reptiles • The animals that have scales on their body and ability to creep are known as reptiles. • Reptiles are the first vertebrates that have Amniotic egg. • Reptiles are Tetra-pod animals. • Their egg have following parts 1. Shell 2. Albumin 3. Yolk
- 8. Scaly Body
- 9. History 1. Anapsida => ‘An’ means without so, these animals are without opeing or feneastrae in the temporal portion of skull. => Turtles represents this linage now a days. => Their skull and shell fossiles are 200 million years old. => The 245 million year old rocks are found in South Africa.
- 10. 2. Synapsid => ‘syn’ means “ with ” so these reptiles have one opening in temporal region of skull. => All synapsids are extenct now.
- 11. 3. Di-apsida => ‘ Di ’ means “two” so these reptiles have two openings in temporal portion. => This group is further divided into two groups. 1- Lepidosauria 2-Archosauria
- 12. Characteristics of reptiles 1.Tetrapod Animal 1. Respiration
- 14. 7.Endothermic => Hibernation 8.Skull => condyle bone 9.Orders -------------------------
- 15. Order Testudines Characteristics Shell in turtels Reproduction & Lifespan Turtles In danger
- 16. Order rhynchocephalia • Introduction • Distinctive Features
- 17. Order Squamata • Sub order Sauria : The lizards 1- Geckos 2-Iguanas 3-chameleons 4-venomous lizards
- 18. Lizards
- 19. Sub order Serpentes • Body structure • Evolution of snakes
- 20. Suborder Amphisbaenia • Body structure
- 23. Adaptations I. Snout II. Air passage way III.Tail IV.Digestive system V.Reproduction