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Birds are vertebrates with wings.

Vital functions

They are endothermic. They are able to produce and maintain their own heat.

They breathe through lungs.

Their eating habits are varied, and related shape of their beaks.

They are oviparous, their eggs with hard shells.

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Reptiles are mostly terrestrial vertebrates.

Vital functions

They are ectothermic animals.

They breathe through lungs.

Many reptiles are carnivores.

They are oviparous. Their eggs, which caan be hard-shelleedd.

THE EGGS HAVE THREE PARTS:

Shell= It is the shell or outer layer of the eggs.

Amnion= Is the protection of the embryo of the eggs.

Embryo= Is the animals inside.

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Amphibians are vertebrate animals, such as: toad, frog, salamander...

Vital functions

They are cold blooded. Its temperature changes with according to its surroundings.

It breathes through its body, so it must always be moist.

They are carnivores, only the tadpoles are herbivores.

And they are oviparous.

METAMORPHOSIS OF FROGS:

Is the developmental process some animals go through from birth to adulthood has they grow.

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Fish have same characteristics:

Vital Functions

Body temperature changes according to the temperature of its surroundings.

T he fishes take their oxygen through the beanquias.

They are oviparous, because they reproduce by laying eggs.

M ost fish are carnivores but there are some that are herbivores.

THEN THERE ARE TWO OTHER TYPES:

Cartilaginous fish: The gills open directly to the water.

Bony fish: The gills are protected by a cover opeculum.

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Mammals are vertebrates and include a great diversity of species.

Vital functions

Mammals are endothermic animals, like birds.

They breathe through their lungs.

Mammals they can be herbivores, carnivores or omnivores.

They viviparous, they can have inside the mother or in a shelless, amniotic eggs.

OTHER MAMMALS

Marsupials ( Kangaroo): They are viviparous, but don't have a developed placenta. They complete their development in the mother's pouch.

Monotremes (Echidna): They are the only mammals that are oviparous, that is, they lay eggs. Their young with milk.

Human beings are also mammals

Human beings are vertebrates and placental mammals.
-Human babies are born completely developed...

SAME CHARACTERISTICS:

We have little hair on our bodies.

Females developed mammary glands.

Our skin has many sweat glands.

We walk on our two back limbs, our legs.

The size of the human brain is very large.

We communicate with individuals...