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Classifying Animals and Their Group
Invertebrates Vertebrates
Caterpillar Dog
What is Invertebrates Animals?
• Animals without backbones are called invertebrates
What is vertebrates Animals?
• Animals with backbones are called vertebrates.
5 classes of Vertebrates
• Fish• Amphibians• Reptiles• Birds
• Mammals
Fish
S hark
FishFish are the simpliest form of vertebrates. Their
body parts are adapted for life in water. The bodies of fish are covered with scales. They
reproduce by laying eggs. Gills take in oxygen from water.
Amphibians
Frog
AmphibiansAmphibians can live on land and in water. As
they grow, their gills disappear and lungs take their place. They take oxygen in 2 ways,
either through lungs or skin.
Reptiles
Crocodile
Reptiles. The body of reptiles are covered with scales and hard body plates. Its skin is dry and cool.
Like a fish. It is a cold-blooded animal. All reptiles have lungs. Many of them live on
land. Some live in water and others in desert.
Birds
Penguin
Birds All birds have pairs of wings. Although some
birds do not fly. Birds have two legs for walking. Their bodies are covered with feathers which keep them warm. They
reproduce by laying eggs.
Mammals
Gorilla
Mammals- They are the most highly developed among
the groups of vertebrates. Their bodies are covered with hair and furs. They have
mammary glands that produce milk with which they use to feed their young.
Mammals reproduce by giving birth to live young.
What are Invertebrates
Invertebrates are animals without backbones. You may have seen many animals without backbones. Most of these animals can take care of themselves as soon as they hatched from eggs. Invertebrates live and grow in different ways.
Invertebrates
Caterpillar
Insects• Insects are the largest group of invertebrates.
Insects are animals with six legs. They use their legs in moving and holding their food. Most of them have one or two pairs of wings, which they also use in moving about from place to another.