Good morning Students.Today we are going to recall the different types of vertebrates and their characteristics
Can each one of you tell me the different types of vertebrates
Birds
fish
amphibians
mammals
repitles
Lets talk about each of these vertebrates
• Class birds lay their eggs in water, they are vertebrates with feathers , forelimbs have become feathers , lays eggs with hard shells , has a beak.
class amphibian are vertebrates with moist,scale-less skin, they lay their eggs in water and the larva lives in water, Adults often live on and the larva has gills , adults have lungs Examples are frogs,
Class reptiles have scaly skin ,lay their eggs with rubbery shells , they do not need to go back to the water to breed as their egg have waterproof shells which stops them from drying out Examples are crocodiles, snakes
Class fish live in water, Have scaly s\kin, they have gills and fins
Class mammals are vertebrates with hair , the have a placenta , the young feed from the mammary gland , the heart has 4 chambers and they have different types of teeth.