General Characteristics of Aves | Dr.BGR Publications
•Download as PPTX, PDF•
0 likes•139 views
Birds are vertebrate animals that are warm-blooded, have feathers, lay eggs, and possess wings adapted for flight. Their bodies are often streamlined with light bones containing air cavities. They lack teeth but have beaks adapted for feeding. Birds have specialized respiratory, circulatory, digestive and reproductive systems adapted for flight including hollow bones, spongy lungs, a four-chambered heart, and a single left ovary. Common examples are pigeons, parrots, sparrows, owls, penguins, hummingbirds, crows and ostriches.
Report
Share
Report
Share
Recommended
Morphology of Cockroach | Dr.BGR Publications
The document summarizes the morphology and characteristics of cockroaches. Cockroaches have an elongated, dorsoventrally flattened body divided into three segments - the head, thorax, and abdomen. They have a pair of antennae that act as sensory organs, three pairs of legs, and two pairs of wings. Their mouthparts consist of labrum, mandibles, maxillae, labium, and hypopharynx. Cockroaches are nocturnal, omnivorous scavengers with compound eyes adapted for low light vision. Males and females differ in size, wing and abdomen shape, and presence of reproductive organs and anal styles.
Digestive System of Cockroach | Dr.BGR Publications
Food is a substance consumed for energy support. In, digestion the alimentary canal plays a key role.
Archaeopteryx | Dr.BGR Publications
This document provides information about Archaeopteryx, including its classification and characteristics. It was the earliest known bird, dating back to Germany. It shows characteristics of both birds and reptiles, making it a connecting link as a transitional form between the two. Specifically, it had teeth and bony tail like reptiles. But its forelimbs were modified into wings and it had feathers, making it the most primitive known bird. The document discusses its importance as a fossil that provides evidence for evolution and its status as a missing link.
General Characteristics of Mammals | Dr.BGR Publications
Mammals are warm-blooded animals that give birth to offspring. Platypus is known as an egg-laying mammal.
Respiratory System of Cockroach | Dr.BGR Publications
Respiration is an act of breathing. The movement of "O" is very important. Yes, Lord Vaayu play an important role in our life.
General Characteristics of Reptiles | Dr.BGR Publications
Reptiles are ectothermic, terrestrial animals that are members of the phylum Chordata. They have key characteristics like dry, scaly skin; a three-chambered heart (four chambers in crocodiles); and the ability to shed their tails as a defense mechanism. Reptiles are oviparous, with internal fertilization and eggs containing a lot of yolk. Examples of reptiles include snakes, turtles, lizards, and crocodiles.
General Characteristics of Amphibia | Dr.BGR Publications
Amphibians like frogs and salamanders live both on land and in water. They are ectothermic, meaning they are cold-blooded and cannot regulate their own body temperature. Amphibians have smooth, moist skin without scales, two pairs of limbs for locomotion, and usually respire through lungs and skin with some possessing external gills. They reproduce sexually with external fertilization and undergo an indirect development with metamorphosis from an aquatic larval stage to a terrestrial adult stage.
Turtle notes
Reptiles are cold-blooded animals with scales and three-chambered hearts. They lay eggs or give live birth. There are about 6,500 reptile species including turtles, which have a shell divided into a top carapace and bottom plastron. Turtles have limbs adapted for their environments - aquatic have flippers, semi-aquatic have webbed feet, and terrestrial walk on their knuckles. They eat a variety of foods depending on if they are tortoises, semi-aquatic, or aquatic.
Recommended
Morphology of Cockroach | Dr.BGR Publications
The document summarizes the morphology and characteristics of cockroaches. Cockroaches have an elongated, dorsoventrally flattened body divided into three segments - the head, thorax, and abdomen. They have a pair of antennae that act as sensory organs, three pairs of legs, and two pairs of wings. Their mouthparts consist of labrum, mandibles, maxillae, labium, and hypopharynx. Cockroaches are nocturnal, omnivorous scavengers with compound eyes adapted for low light vision. Males and females differ in size, wing and abdomen shape, and presence of reproductive organs and anal styles.
Digestive System of Cockroach | Dr.BGR Publications
Food is a substance consumed for energy support. In, digestion the alimentary canal plays a key role.
Archaeopteryx | Dr.BGR Publications
This document provides information about Archaeopteryx, including its classification and characteristics. It was the earliest known bird, dating back to Germany. It shows characteristics of both birds and reptiles, making it a connecting link as a transitional form between the two. Specifically, it had teeth and bony tail like reptiles. But its forelimbs were modified into wings and it had feathers, making it the most primitive known bird. The document discusses its importance as a fossil that provides evidence for evolution and its status as a missing link.
General Characteristics of Mammals | Dr.BGR Publications
Mammals are warm-blooded animals that give birth to offspring. Platypus is known as an egg-laying mammal.
Respiratory System of Cockroach | Dr.BGR Publications
Respiration is an act of breathing. The movement of "O" is very important. Yes, Lord Vaayu play an important role in our life.
General Characteristics of Reptiles | Dr.BGR Publications
Reptiles are ectothermic, terrestrial animals that are members of the phylum Chordata. They have key characteristics like dry, scaly skin; a three-chambered heart (four chambers in crocodiles); and the ability to shed their tails as a defense mechanism. Reptiles are oviparous, with internal fertilization and eggs containing a lot of yolk. Examples of reptiles include snakes, turtles, lizards, and crocodiles.
General Characteristics of Amphibia | Dr.BGR Publications
Amphibians like frogs and salamanders live both on land and in water. They are ectothermic, meaning they are cold-blooded and cannot regulate their own body temperature. Amphibians have smooth, moist skin without scales, two pairs of limbs for locomotion, and usually respire through lungs and skin with some possessing external gills. They reproduce sexually with external fertilization and undergo an indirect development with metamorphosis from an aquatic larval stage to a terrestrial adult stage.
Turtle notes
Reptiles are cold-blooded animals with scales and three-chambered hearts. They lay eggs or give live birth. There are about 6,500 reptile species including turtles, which have a shell divided into a top carapace and bottom plastron. Turtles have limbs adapted for their environments - aquatic have flippers, semi-aquatic have webbed feet, and terrestrial walk on their knuckles. They eat a variety of foods depending on if they are tortoises, semi-aquatic, or aquatic.
Lecture 9 (arthropoda)
Arthropods are segmented animals with jointed appendages, an exoskeleton, and a body divided into three parts. They include insects, spiders, crabs, and others. Arthropods have a complete digestive system, respiratory systems like gills or trachea, and open circulatory systems. They are found worldwide and are important as food, for agriculture, and unfortunately can transmit diseases. The phylum is divided into subphylums including Trilobitomorpha, Chelicerata, Myriapoda, Crustacea, and Hexapoda.
Chordate classes
The document summarizes the key characteristics of the major vertebrate classes: Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. It describes their distinguishing features such as respiration, circulation, fertilization, eggs/young, metabolism, skin/covering, and other defining traits. The classes generally increase in complexity from jawless fish to mammals, with mammals exhibiting the most advanced adaptations including fur/hair, mammary glands, and internal gestation/live birth.
12 chordata
The document provides an introduction to the phylum Chordata, including three key unifying themes: 1) Chordates evolved from invertebrates but display innovations, 2) Chordates exhibit physical and behavioral specializations through evolution, and 3) Evolutionary innovations led to adaptive radiations. It describes five key characteristics of chordates - notochord, dorsal nerve cord, pharyngeal slits, muscle blocks, and postanal tail. It then discusses the three subphyla of chordates - invertebrate Urochordata and Cephalochordata, and vertebrate Vertebrata. Vertebrates exhibit all five chordate characteristics and have additional defining features like an endos
birds classification by deepak rawal
The document provides a classification of birds based on their anatomical features and behaviors. It discusses the key orders of birds including flightless birds like penguins, ratites, and extinct bird groups. For each order, 1-2 defining characteristics and an example genus are given. The classification aims to group birds based on shared derived characteristics.
Chordates
The document summarizes several classes of chordates, including fish, amphibians, reptiles, birds, and mammals. Key details are provided about characteristics such as respiration, reproduction, heart structure, skin/scales, metabolism and more. Examples like the barrier reef anemonefish, western spadefoot toad, komodo dragon, emperor penguin and blue whale are highlighted. The document concludes by discussing primates and humans, noting our large brains, bipedalism, tool use, and other distinguishing features.
Special features for flight,3 mammal reprod groups & endoskeleton vs exoskeleton
This document covers three main topics:
1. Class Aves (birds) including two early bird species, Archaeopteryx and Confuciusornis, and special features for flight such as hollow bones and feathers.
2. Class Mammalia, which has three reproductive groups - placental mammals, marsupials, and monotremes. Placental mammals have placentas, marsupials give birth to immature young that develop further in pouches, and monotremes are egg-laying mammals.
3. The differences between endoskeletons and exoskeletons, with endoskeletons being internal skeletons made of cartilage or bone that allow for
Chordata
Chordata is the last phylum of kingdom Animalia.
Which is further subdivided into subphylums, divisions and classes.
The Slides shows the classification of the phylum along with the basis on which it is classified.
(includes examples along with pictures for easy understanding and memorizing)
Heller u05a2
The document summarizes the characteristics of the phylum Chordata. There are seven main classes of chordates:
1) Agnatha - Jawless fish with a notochord but no jaws, scales or fins. They have gills and are marine or freshwater ectotherms.
2) Condrichythes - Sharks, rays and skates with cartilage skeletons, paired fins, placoid scales and teeth that point inward. They are marine ectothermic carnivores or filter feeders.
3) Osteichthyes - Bony fish with paired fins, scales, swim bladders, chromatophores and lateral lines. They can be marine or fresh
Classification of amphibia
Amphibians are teterapod vertebrata, transition stage between aquatic and terrestial mode of life.
Phylum chordata - zoology
The chordates are named for the notochord: a flexible, rod-shaped structure that is found in the embryonic stage of all chordates and also in the adult stage of some chordate species.
It is located between the digestive tube and the nerve cord, providing skeletal support through the length of the body.
In some chordates, the notochord acts as the primary axial support of the body throughout the animal's lifetime.
Chordate characteristics 2016
This document describes the characteristics of the phylum Chordata, which includes humans and other vertebrate animals. Chordata are defined by having a notochord or backbone during development. The phylum contains five subphyla: Hemichordata, Urochordata, Cephalochordata, and Vertebrata. Vertebrata are further divided into seven classes: Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. The document provides details on characteristics and examples for each group.
Bio. ppt
The document summarizes several animal phyla:
- Nematodes, or roundworms, are a diverse phylum of worm-like animals that inhabit many environments. There are over 25,000 described species, many of which are parasitic.
- Arthropods are the largest animal group and include insects, arachnids, and crustaceans. They are bilaterally symmetrical, segmented, and have jointed legs.
- Chordates have a notochord at some stage of development that provides support and allows for movement. This phylum includes vertebrates like fish.
- Fish are exclusively aquatic, have scales, gills for respiration, and two-chambered hearts. They
Chordata - Bio 11
- Chordates evolved from invertebrates and display traits like bilateral symmetry, segmentation, and a gut tube. Chordate evolution led to specializations like variations in limb structure in mammals.
- The four defining chordate features present in embryos and sometimes adults are a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail.
- Vertebrates are chordates that evolved a cartilage or bone skull, vertebral column, and other adaptations to land like lungs and efficient kidneys. Major vertebrate groups include fish, amphibians, reptiles, birds, and mammals.
Classification of Phylum: chordates up to class
this presentation provide classification of phylum chordata up to class and gives proper introduction.
echinodermata and mollusca
This document provides information about the phyla Echinodermata and Mollusca. It describes their general characteristics, classifications, reproduction, special features, and economic importance. Echinodermata are spiny-skinned marine animals without freshwater or terrestrial representatives. They have calcium carbonate ossicles in their skin and include sea stars, sea urchins, sand dollars, and sea cucumbers. Mollusca is the second largest phylum of invertebrates and includes snails, slugs, clams, squids, and octopuses. They are soft-bodied with some having shells. Both phyla play important ecological roles and have economic uses as food, ornament
Amphibia classification by deepak rawal
This document discusses the classification and characteristics of amphibians. It covers the major orders of amphibians including Labyrinthodontia, Phyllospondyli, Lepospondyli, Apoda, Urodela, and Anura. Key characteristics like larval development, parental care strategies, and reproductive modes are described. Examples are provided to illustrate different amphibian groups and parental care behaviors like nest building, egg guarding, carrying eggs attached to the body, and ovoviviparity.
Segmented Worms
Annelids, or segmented worms, have bilateral symmetry and a body cavity containing organs. Earthworms have over 100 segments and move using setae and muscles. They ingest soil, grind it, and excrete waste to aid the soil. Earthworms have a closed circulatory system and exchange gases through their skin. They are hermaphrodites that need to mate to reproduce. Marine worms have segments with bundled setae, with some free-moving and others building tubes. Leeches lack setae and feed on blood, being used medicinally to prevent coagulation and study treatments. Segmented worms are valuable as they aerate soil, produce medicines, and provide food.
Phylum Chordata: Fishes
The document summarizes characteristics of the phylum Chordata including having a hollow nerve chord, notochord, gill slits or pharyngeal pouches, and post-anal tail. It notes Chordata includes vertebrates like fish, amphibians, reptiles, birds, and mammals. It then focuses on fish, describing their aquatic environment, closed circulatory system, tube-like kidneys, sexual dimorphism, and external fertilization. It lists the three classes of fish as jawless lampreys and hagfish, cartilaginous sharks and rays, and bony fish. Key characteristics of each class are outlined.
Prochordates
Please find here, the powerpoint presentation that was made by me for my studetns who are in IX standard.
Out this presentation ,my students were really benefitted
Its my present to all the students.Get promoted by watching this.
Thank You
S.Seethakutty
Chettinad Vidya Mandir
Karur,Tamil Nadu
Chordates and vertebrates
Here are definitions of the key terms:
Chordate - An animal belonging to the phylum Chordata, which includes all animals with a notochord or backbone at some stage of their lives.
Notochord - A flexible rod of cells that forms the basic structure along the back in early embryonic chordates. It is replaced by the vertebral column in most vertebrates.
Postanal tail - The muscular structure behind the anus that is present in early chordate embryos.
Nerve cord - A tube-like structure above the notochord that develops into the central nervous system.
Pharyngeal pouch - Sac-like projections in the throat region that filter feed in some
animal classification
The document summarizes the characteristics of different classes of fish. It discusses three main classes of fish: [1] Bony fish, which make up 95% of all fish and have skeletons made of bone; [2] Cartilaginous fish like sharks that have skeletons made of cartilage; and [3] Jawless fish like lampreys that do not have true jaws. The majority of fish fall under the class of bony fish.
animal classification
The document summarizes the characteristics of different classes of fish. It discusses three main types of fish: [1] bony fish which make up 95% of all fish and have skeletons made of bone, [2] cartilaginous fish such as sharks that have skeletons made of cartilage instead of bone, and [3] jawless fish such as lampreys and hagfish that are more primitive with rasping teeth but no true jaws. The majority of fish fall into the class of bony fish.
More Related Content
What's hot
Lecture 9 (arthropoda)
Arthropods are segmented animals with jointed appendages, an exoskeleton, and a body divided into three parts. They include insects, spiders, crabs, and others. Arthropods have a complete digestive system, respiratory systems like gills or trachea, and open circulatory systems. They are found worldwide and are important as food, for agriculture, and unfortunately can transmit diseases. The phylum is divided into subphylums including Trilobitomorpha, Chelicerata, Myriapoda, Crustacea, and Hexapoda.
Chordate classes
The document summarizes the key characteristics of the major vertebrate classes: Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. It describes their distinguishing features such as respiration, circulation, fertilization, eggs/young, metabolism, skin/covering, and other defining traits. The classes generally increase in complexity from jawless fish to mammals, with mammals exhibiting the most advanced adaptations including fur/hair, mammary glands, and internal gestation/live birth.
12 chordata
The document provides an introduction to the phylum Chordata, including three key unifying themes: 1) Chordates evolved from invertebrates but display innovations, 2) Chordates exhibit physical and behavioral specializations through evolution, and 3) Evolutionary innovations led to adaptive radiations. It describes five key characteristics of chordates - notochord, dorsal nerve cord, pharyngeal slits, muscle blocks, and postanal tail. It then discusses the three subphyla of chordates - invertebrate Urochordata and Cephalochordata, and vertebrate Vertebrata. Vertebrates exhibit all five chordate characteristics and have additional defining features like an endos
birds classification by deepak rawal
The document provides a classification of birds based on their anatomical features and behaviors. It discusses the key orders of birds including flightless birds like penguins, ratites, and extinct bird groups. For each order, 1-2 defining characteristics and an example genus are given. The classification aims to group birds based on shared derived characteristics.
Chordates
The document summarizes several classes of chordates, including fish, amphibians, reptiles, birds, and mammals. Key details are provided about characteristics such as respiration, reproduction, heart structure, skin/scales, metabolism and more. Examples like the barrier reef anemonefish, western spadefoot toad, komodo dragon, emperor penguin and blue whale are highlighted. The document concludes by discussing primates and humans, noting our large brains, bipedalism, tool use, and other distinguishing features.
Special features for flight,3 mammal reprod groups & endoskeleton vs exoskeleton
This document covers three main topics:
1. Class Aves (birds) including two early bird species, Archaeopteryx and Confuciusornis, and special features for flight such as hollow bones and feathers.
2. Class Mammalia, which has three reproductive groups - placental mammals, marsupials, and monotremes. Placental mammals have placentas, marsupials give birth to immature young that develop further in pouches, and monotremes are egg-laying mammals.
3. The differences between endoskeletons and exoskeletons, with endoskeletons being internal skeletons made of cartilage or bone that allow for
Chordata
Chordata is the last phylum of kingdom Animalia.
Which is further subdivided into subphylums, divisions and classes.
The Slides shows the classification of the phylum along with the basis on which it is classified.
(includes examples along with pictures for easy understanding and memorizing)
Heller u05a2
The document summarizes the characteristics of the phylum Chordata. There are seven main classes of chordates:
1) Agnatha - Jawless fish with a notochord but no jaws, scales or fins. They have gills and are marine or freshwater ectotherms.
2) Condrichythes - Sharks, rays and skates with cartilage skeletons, paired fins, placoid scales and teeth that point inward. They are marine ectothermic carnivores or filter feeders.
3) Osteichthyes - Bony fish with paired fins, scales, swim bladders, chromatophores and lateral lines. They can be marine or fresh
Classification of amphibia
Amphibians are teterapod vertebrata, transition stage between aquatic and terrestial mode of life.
Phylum chordata - zoology
The chordates are named for the notochord: a flexible, rod-shaped structure that is found in the embryonic stage of all chordates and also in the adult stage of some chordate species.
It is located between the digestive tube and the nerve cord, providing skeletal support through the length of the body.
In some chordates, the notochord acts as the primary axial support of the body throughout the animal's lifetime.
Chordate characteristics 2016
This document describes the characteristics of the phylum Chordata, which includes humans and other vertebrate animals. Chordata are defined by having a notochord or backbone during development. The phylum contains five subphyla: Hemichordata, Urochordata, Cephalochordata, and Vertebrata. Vertebrata are further divided into seven classes: Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. The document provides details on characteristics and examples for each group.
Bio. ppt
The document summarizes several animal phyla:
- Nematodes, or roundworms, are a diverse phylum of worm-like animals that inhabit many environments. There are over 25,000 described species, many of which are parasitic.
- Arthropods are the largest animal group and include insects, arachnids, and crustaceans. They are bilaterally symmetrical, segmented, and have jointed legs.
- Chordates have a notochord at some stage of development that provides support and allows for movement. This phylum includes vertebrates like fish.
- Fish are exclusively aquatic, have scales, gills for respiration, and two-chambered hearts. They
Chordata - Bio 11
- Chordates evolved from invertebrates and display traits like bilateral symmetry, segmentation, and a gut tube. Chordate evolution led to specializations like variations in limb structure in mammals.
- The four defining chordate features present in embryos and sometimes adults are a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail.
- Vertebrates are chordates that evolved a cartilage or bone skull, vertebral column, and other adaptations to land like lungs and efficient kidneys. Major vertebrate groups include fish, amphibians, reptiles, birds, and mammals.
Classification of Phylum: chordates up to class
this presentation provide classification of phylum chordata up to class and gives proper introduction.
echinodermata and mollusca
This document provides information about the phyla Echinodermata and Mollusca. It describes their general characteristics, classifications, reproduction, special features, and economic importance. Echinodermata are spiny-skinned marine animals without freshwater or terrestrial representatives. They have calcium carbonate ossicles in their skin and include sea stars, sea urchins, sand dollars, and sea cucumbers. Mollusca is the second largest phylum of invertebrates and includes snails, slugs, clams, squids, and octopuses. They are soft-bodied with some having shells. Both phyla play important ecological roles and have economic uses as food, ornament
Amphibia classification by deepak rawal
This document discusses the classification and characteristics of amphibians. It covers the major orders of amphibians including Labyrinthodontia, Phyllospondyli, Lepospondyli, Apoda, Urodela, and Anura. Key characteristics like larval development, parental care strategies, and reproductive modes are described. Examples are provided to illustrate different amphibian groups and parental care behaviors like nest building, egg guarding, carrying eggs attached to the body, and ovoviviparity.
Segmented Worms
Annelids, or segmented worms, have bilateral symmetry and a body cavity containing organs. Earthworms have over 100 segments and move using setae and muscles. They ingest soil, grind it, and excrete waste to aid the soil. Earthworms have a closed circulatory system and exchange gases through their skin. They are hermaphrodites that need to mate to reproduce. Marine worms have segments with bundled setae, with some free-moving and others building tubes. Leeches lack setae and feed on blood, being used medicinally to prevent coagulation and study treatments. Segmented worms are valuable as they aerate soil, produce medicines, and provide food.
Phylum Chordata: Fishes
The document summarizes characteristics of the phylum Chordata including having a hollow nerve chord, notochord, gill slits or pharyngeal pouches, and post-anal tail. It notes Chordata includes vertebrates like fish, amphibians, reptiles, birds, and mammals. It then focuses on fish, describing their aquatic environment, closed circulatory system, tube-like kidneys, sexual dimorphism, and external fertilization. It lists the three classes of fish as jawless lampreys and hagfish, cartilaginous sharks and rays, and bony fish. Key characteristics of each class are outlined.
Prochordates
Please find here, the powerpoint presentation that was made by me for my studetns who are in IX standard.
Out this presentation ,my students were really benefitted
Its my present to all the students.Get promoted by watching this.
Thank You
S.Seethakutty
Chettinad Vidya Mandir
Karur,Tamil Nadu
Chordates and vertebrates
Here are definitions of the key terms:
Chordate - An animal belonging to the phylum Chordata, which includes all animals with a notochord or backbone at some stage of their lives.
Notochord - A flexible rod of cells that forms the basic structure along the back in early embryonic chordates. It is replaced by the vertebral column in most vertebrates.
Postanal tail - The muscular structure behind the anus that is present in early chordate embryos.
Nerve cord - A tube-like structure above the notochord that develops into the central nervous system.
Pharyngeal pouch - Sac-like projections in the throat region that filter feed in some
What's hot (20)
Special features for flight,3 mammal reprod groups & endoskeleton vs exoskeleton
Special features for flight,3 mammal reprod groups & endoskeleton vs exoskeleton
Similar to General Characteristics of Aves | Dr.BGR Publications
animal classification
The document summarizes the characteristics of different classes of fish. It discusses three main classes of fish: [1] Bony fish, which make up 95% of all fish and have skeletons made of bone; [2] Cartilaginous fish like sharks that have skeletons made of cartilage; and [3] Jawless fish like lampreys that do not have true jaws. The majority of fish fall under the class of bony fish.
animal classification
The document summarizes the characteristics of different classes of fish. It discusses three main types of fish: [1] bony fish which make up 95% of all fish and have skeletons made of bone, [2] cartilaginous fish such as sharks that have skeletons made of cartilage instead of bone, and [3] jawless fish such as lampreys and hagfish that are more primitive with rasping teeth but no true jaws. The majority of fish fall into the class of bony fish.
General Characteristics of Pisces | Dr.BGR Publications
Pisces are cold-blooded aquatic vertebrates that breathe through gills and have streamlined bodies covered in scales. They have fins for locomotion and lack eyelids and external ears. Their two-chambered heart circulates nucleated red blood cells through their circulatory system. Reproduction involves separate sexes and internal or external fertilization of eggs.
Kingdom animalia
This document summarizes key characteristics of different phyla in the animal kingdom. It describes how animals in the phylum Arthropoda have an exoskeleton, jointed appendages, and includes the classes Insecta, Arachnida, Crustacea, and Myriapoda. It then discusses characteristics of vertebrates, including having a backbone and including the classes Pisces, Amphibia, Reptilia, Aves, and Mammalia. Finally, it provides examples of distinguishing features of different animal groups.
Five kindoms classification
The document describes the key characteristics of five animal classes: Pisces, Amphibia, Reptilia, Aves, and Mammalia. Pisces are cold-blooded fish with scales, fins, gills, and external fertilization. Amphibians can breathe through gills or lungs and lay eggs but undergo metamorphosis, while Reptiles are cold-blooded, lay eggs with scales or none, and breathe through lungs. Birds are warm-blooded, have feathers and beaks, lay hard-shelled eggs, and have wings and hollow bones. Mammals are warm-blooded, have hair, nourish young with mammary glands, breathe through lungs,
Aves
Birds are warm-blooded vertebrates that have several distinguishing characteristics. Their forelimbs are modified into wings for flight, while their hind limbs are used for walking and swimming. Birds have lightweight, hollow bones filled with air cavities called pneumatic bones that help reduce weight for flight. They also have feathers that reduce air resistance and flexible neck vertebrae. Most birds excrete uric acid through their kidneys and intestines, though some like hummingbirds excrete ammonia and creatine. They lack a urinary bladder and excrete through a cloaca, a posterior opening used for excretion, mating and egg-laying.
Living world of animals (2)
This document discusses biology standard VI and provides details about various biological concepts. It defines biology as the study of living organisms, ecosystems, and biodiversity. It explains key differences between unicellular and multicellular organisms. Examples of adaptation in different organisms like fish, lizards, birds, camels, polar bears, and penguins are provided to help them survive in their habitats. Cell structure and functions are also summarized.
1ClassifyingAnimalsPowerpoint.pdf
This document classifies animals into two main groups: vertebrates and invertebrates. Vertebrates are further divided into five subclasses based on physical characteristics: fish, amphibians, reptiles, birds, and mammals. Each subclass shares defining traits such as how they breathe, whether they have scales or feathers, how they reproduce, and whether their body temperature changes with the environment or remains constant. Invertebrates either have a hard outer shell like insects and crabs or a softer body without a shell like jellyfish and worms, with examples given like spiders, shrimp, and snails.
Vertebrates
The document presents a chart comparing five types of vertebrate animals - fish, amphibians, birds, mammals, and reptiles - across several categories: body coverings, appendages, body temperature, respiration, and birth. It finds that fish and reptiles have scales, birds have feathers, amphibians and some reptiles may not have appendages, amphibians, birds, mammals and reptiles have legs, birds have wings, birds and mammals are warm-blooded, fish breath with gills and mammals with lungs, and amphibians lay eggs rather than give live birth.
Living world of animals
1) The document discusses the adaptations of various organisms to their environments, including physical features that help animals like camels, polar bears, penguins, goats, and cheetahs survive in deserts, arctic regions, oceans, mountains, and savannas.
2) It explains adaptations like a camel's ability to store water, a polar bear's thick layer of fat and fur for insulation, a penguin's streamlined body and waterproof feathers, a goat's flexible hooves, and a cheetah's camouflaging coat and claws for hunting.
3) The adaptations described allow organisms to thrive in their particular habitats by aiding functions like thermoregulation, movement, for
Arthropoda characters & classification
- Arthropoda is the largest phylum of animals, including insects, arachnids, crustaceans, and others. They are bilaterally symmetrical, segmented, and have jointed appendages and a chitinous exoskeleton.
- The phylum contains over 80% of all animal species. It is divided into subphyla including Trilobita, Chelicerata, and Mandibulata. Trilobites are extinct marine arthropods. Chelicerates include spiders, scorpions, and others. Mandibulates include insects, crustaceans, centipedes, and millipedes.
- Arthropods live in nearly all environments and have
Vertebrates Powerpoint
This document provides information about vertebrate animals, beginning with their taxonomic classification and then describing key characteristics of major vertebrate groups including fish, amphibians, reptiles, birds, and mammals. It outlines defining anatomical features for each group as well as examples of orders, classes, and important vocabulary terms.
Vertebratespowerpoint
This document provides information about vertebrate animals, beginning with their taxonomic classification and then describing key characteristics of major vertebrate groups including fish, amphibians, reptiles, birds, and mammals. It outlines defining anatomical features for each group as well as examples of orders, classes, and important vocabulary terms.
Consumers vertebrates
The document provides an overview of the classification and characteristics of vertebrate animals. It discusses the key groups of vertebrates including fish, amphibians, reptiles, birds, and mammals. For each group, it outlines some distinguishing physical attributes and examples of common types within that group.
Tabla vertebrates
This document categorizes different types of vertebrates and provides some of their key characteristics. It describes fish, amphibians, reptiles, birds, and mammals, noting aspects of their habitat, diet, temperature regulation, respiration, reproduction, and other distinguishing features. For each group, it also lists some examples of subclasses.
Vertebrates
This document provides information about different types of vertebrates including fish, birds, amphibians, reptiles, and mammals. It describes some key characteristics of each group and examples of common species. The document aims to classify different vertebrate animals according to their defining physical attributes and environmental adaptations.
BODY STRUCTURES THAT HELP ANIMALS ADAPT AND SURVIVE .pptx
Animals have body structures that help them adapt to their environment. ADAPTATION is
the structure or behavior that helps an organism survive in its environment.
HABITAT is an ecological or environmental area that is inhabited by a particular species of
animal, plant, or other type or organisms. Fish are covered with scales for protection from disease and
from other animals that live in water. Shrimps and lobsters are covered with outside skeleton or
exoskeleton while other animals like clams and mussels are covered with shells. Some animals are
covered with fur to keep them warm like monkey, lion, horse, and cheetah. Some animals that found in
the locality are carabao, cow, goat, dog and cat. Others are covered with feathers for flying like chicken,
eagle, peacock, and duck. Some have smooth skin for breathing like earthworm. Most body coverings
of animals are for protection.
Animals move differently depending on their habitat and their body structures. Some animals have
legs for walking and some have wings for flying. Animals that live on land move in different ways.
Some walk, hop and jump. Most animals that live in water swim. But some aquatic animals have legs,
too, for walking like crustaceans, shrimps, prawns, and crabs. Animals that can live both in water and
on land can either walk, hop, jump, or swim. Some animals used the following body structures to adapt
and survive: horns, tails, claws, paws, fangs, pincers, beaks, sticky tongue, movable jaws, sucking tubes,
and teeth.
These are the important information about the body structures that help animals adapt and survive
in their particular habitat.
Birds
- Birds evolved from reptiles and Archaeopteryx possessed both reptilian and avian features. Key avian traits include feathers, hollow lightweight bones, beaks, endothermy, and amniotic eggs.
- Birds have highly specialized organ systems for flight including strong heart and respiratory systems. Their feathers provide insulation and flight abilities.
- There are many orders of birds with varied traits like waterfowl that are aquatic, owls with keen vision and hearing, and songbirds that communicate through song.
Aquatic mammals & their adaptation.fully aquatic mammal and amphibian aquatic...
this slide animation and videos work mainly in power point 2013 version.the slide contain aquatic mammals and their evolutions.mainly evolutions and their adaptive mechanisms are also listed
Similar to General Characteristics of Aves | Dr.BGR Publications (20)
General Characteristics of Pisces | Dr.BGR Publications
General Characteristics of Pisces | Dr.BGR Publications
BODY STRUCTURES THAT HELP ANIMALS ADAPT AND SURVIVE .pptx
BODY STRUCTURES THAT HELP ANIMALS ADAPT AND SURVIVE .pptx
Aquatic mammals & their adaptation.fully aquatic mammal and amphibian aquatic...
Aquatic mammals & their adaptation.fully aquatic mammal and amphibian aquatic...
More from DrBGRPublications
Primary Data | Dr.BGR Publications
Data is a set of facts expressed in quantitative form. It can be primary or secondary. Data collection is the first step for statistical studies.
Advantages of ELISA | Dr.BGR Publications
ELISA is an immunological plate-based assay technique that offers several advantages including high sensitivity and specificity due to the use of antibodies to detect antigens at the picogram level. ELISA also allows for high throughput using 96-well plate formats that can be adapted to 384-well plates. Additionally, ELISA protocols are easy to perform requiring little hands-on time and the assays are quantitative, cost-effective, and can test various sample types without the need for radioactive substances or large amounts of organic solvents.
Applications of ELISA | Dr.BGR Publications
Enzyme-linked immunosorbent assay (ELISA) is an immunoassay used to measure antibodies, antigens, proteins, & glycoproteins in biological samples. ELISA is a plate-based technique.
Tips for Writing Conference Abstract | Dr.BGR Publications
This document provides tips for writing an effective conference abstract. It recommends keeping the abstract concise (250-300 words), following a formula of including the topic, title, author(s), motivation, problem statement, approach, results, and conclusions. Key details to include are the research question, methodology, findings (whether expected or unexpected), and significance. The abstract should be relevant to the conference theme and grab readers' attention. It should be edited after time away and submitted early to allow for review. Presenting research at a conference can provide feedback, attention, and opportunities for collaboration.
Acknowledgements: Research Report | Dr.BGR Publications
The acknowledgement section is one of the important sections for a thesis or dissertation. This section helps to identify the contributors to this research.
ithenticate | Dr.BGR Publications
Plagiarism is presenting someone else's ideas as your own, without full acknowledgment. There are a lot of tools are available in the market for checking the plagiarism in your article. ithenticate is the best tool for the check.
Plagiarism | Dr. BGR Publications
Plagiarism is presenting someone else's published project/ideas as your own, with or without their consent. Without full acknowledgment.
Journal - Dr.BGR Publications
A journal is a scholarly publication that is published periodically containing articles written by researchers and experts. Journals can exist in print or electronic format, with electronic journals being accessible online. All journals are assigned a unique 8-digit International Standard Serial Number to identify the publication regardless of format. Journals contain different types of articles including research articles, review articles, letters, and others focused on sharing new research findings and knowledge. Maintaining a journal provides benefits such as improving mental health, boosting confidence, strengthening writing skills, and enhancing critical thinking.
Poster Presentation | Dr.BGR Publications
A poster presentation is used in the academic community. It contains a brief text mixed with tables, graphs, pictures. A poster session is an event.
Search Engine | Dr.BGR Publications
The search engine plays a vital role in 2022. It is computer software, used to identify the database information. All the best for your "Re-Search".
Literature Citation: Citation Sequence System | Dr.BGR Publications
Literature Citation is very much essential for our "Re-Search". Citation Sequence System is one of the best system of citing references.
Reference Card | Dr.BGR Publications
A reference Card is similar to an Index card. It is used for taking information from a research article.
Cells of the Immune System | Dr.BGR Publications
The document summarizes key components of the immune system. It describes the thymus as the primary lymphoid organ where T cells mature. Within the thymus are epithelial cells, thymocytes that become T cells, dendritic cells, and macrophages. The thymus is larger in newborns and smaller in adults. T cells are categorized as cytotoxic, helper, or regulatory. The thymus also produces hormones that boost immune responses. Bone marrow produces blood cells including red blood cells, white blood cells like T and B cells, and platelets. T and B cells are lymphocytes that respond specifically to antigens. B cells mature in bone marrow while T cells mature in the thymus. Natural killer
Index Card | Dr. BGR Publications
Index Card is very much useful to construct a reference. Create a card with your own writing. All the best for your "Re-Search".
Literature Collection | Dr.BGR Publications
The collection of literature is very important for research. Literature collection is the first step for doing ReSearch.
Introduction to Research | Dr.BGR Publications
Research is nothing but a "Re-Search". So, please be careful at the time of your search. All the best for your search.
Antigens and Immunogens | Dr.BGR Publications
Antigens are molecules that can bind to components of the immune system like antibodies, T cells, and B cells. They include proteins, peptides, polysaccharides, lipids, and nucleic acids and contain epitopes that antibodies bind to. Immunogens are antigens that can trigger an immune response, though not all antigens are immunogenic. Immunogens are typically proteins, peptides, and large polysaccharides but lipids and nucleic acids can also act as immunogens when bound to proteins or polysaccharides. The main difference between antigens and immunogens is that antigens can simply bind to the immune system while immunogens can induce an immune response.
Types of Immunity | Dr.BGR Publications
This document summarizes the different types of immunity. There are two main types: innate immunity, which is the body's first line of defense and includes physical barriers like the skin and mucous membranes, as well as internal responses like inflammation and fever. The second type is adaptive immunity, also known as acquired immunity, which is a more targeted defense that develops from exposure to foreign substances. Adaptive immunity can be either active, gained from direct infection or vaccination, or passive, received from another source like mother's milk or antibody injection. Active immunity is long-lasting while passive immunity only provides short-term protection.
History of Immunology | Dr.BGR Publications
This document provides an overview of immunology and some key figures in its history. It begins by explaining that immunology started as a branch of microbiology focused on the study of disease and the immune system's response to antigens. The document then defines immunology as the study of the immune system, which protects the body from infection. It describes the roles of immunologists as scientists who research the immune system in laboratories and clinics. Several pioneering researchers are highlighted, including Anton van Leeuwenhoek, considered the "Father of Microbiology", for his early microscopic observations. Edward Jenner developed the smallpox vaccine in the late 18th century. Later figures like Louis Pasteur, Paul Ehrlich, and Robert Koch made
General Characteristics of Echinodermata | Dr.BGR Publications
Echinodermata are exclusively marine animals with radial symmetry as adults and bilateral symmetry as larvae. They have an endoskeleton, water vascular system, and tube feet. Key characteristics include a triploblastic organization, absence of a nervous system and circulatory system, and indirect development with characteristic larvae. Examples include starfish, sea urchins, sea lilies, and sea cucumbers.
More from DrBGRPublications (20)
Tips for Writing Conference Abstract | Dr.BGR Publications
Tips for Writing Conference Abstract | Dr.BGR Publications
Acknowledgements: Research Report | Dr.BGR Publications
Acknowledgements: Research Report | Dr.BGR Publications
Literature Citation: Citation Sequence System | Dr.BGR Publications
Literature Citation: Citation Sequence System | Dr.BGR Publications
General Characteristics of Echinodermata | Dr.BGR Publications
General Characteristics of Echinodermata | Dr.BGR Publications
Recently uploaded
How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingExcellence Foundation for South Sudan
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.Wound healing PPT
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
BBR 2024 Summer Sessions Interview Training
Qualitative research interview training by Professor Katrina Pritchard and Dr Helen Williams
Constructing Your Course Container for Effective Communication
Communicating effectively and consistently with students can help them feel at ease during their learning experience and provide the instructor with a communication trail to track the course's progress. This workshop will take you through constructing an engaging course container to facilitate effective communication.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience Wahiba Chair Training & Consulting
Wahiba Chair's Talk at the 2024 Learning Ideas Conference. Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...Nguyen Thanh Tu Collection
https://app.box.com/s/qhtvq32h4ybf9t49ku85x0n3xl4jhr15How to Setup Warehouse & Location in Odoo 17 Inventory
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
The History of Stoke Newington Street Names
Presented at the Stoke Newington Literary Festival on 9th June 2024
www.StokeNewingtonHistory.com
Recently uploaded (20)
IGCSE Biology Chapter 14- Reproduction in Plants.pdf
IGCSE Biology Chapter 14- Reproduction in Plants.pdf
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
B. Ed Syllabus for babasaheb ambedkar education university.pdf
B. Ed Syllabus for babasaheb ambedkar education university.pdf
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Constructing Your Course Container for Effective Communication
Constructing Your Course Container for Effective Communication
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
How to Create a More Engaging and Human Online Learning Experience
How to Create a More Engaging and Human Online Learning Experience
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
General Characteristics of Aves | Dr.BGR Publications
- 1. Dr. BGR
- 2. • Introduction • Key Characteristics • General Characteristics • Example • Summary
- 3. • Kingdom: Animalia Note All animals are members of the Animalia • PHYLUM: CHORDATA • SUBPHYLUM: VERTEBRATA Chordate: animal of the phylum Chordata
- 4. animals Cold Blooded Cannot maintain Constant temperature Warm-Blooded Can maintain Constant temperature
- 5. forelimbs are modified into wings Wings: இறக்கைைள் Forelimbs: foreleg Note
- 6. adapted for walking, hopping, perching, grasping, wading & swimming Hopping: துள்ளல் Perching: rest on something Grasping: பிடிப்பது Wading: walk with effort through water / another liquid Note
- 7. epidermal scales on their legs Scales: composed of keratin Note
- 8. bones filled with air cavities
- 9. spindle-shaped (OR) boat-shaped (OR) streamlined Why do birds have streamlined body?
- 10. help in preventing heat loss reduce air friction
- 11. no skin gland oil gland: present Note uropygial gland / preen gland / oil gland
- 12. jaws are modified into a beak
- 13. Absent
- 14. It has a crop & a gizzard crops used in softening food gizzard helps in crushing the food
- 15. spongy & elastic lungs
- 16. special vocal organ present at the base of trachea
- 17. four-chambered
- 18. oval nucleated biconvex
- 19. single ovary & oviduct on the left side
- 20. exhibit sexual dimorphism eggs have four embryonic membranes- amnion, chorion, allantois, & yolk sac Note no other embryonic development within the mother
- 21. Monocular
- 22. • Pigeon • Parrot • Sparrow • Owls • Penguins • Hummingbird • Crow • Ostrich