Vertebrates

Sofía Cantero

These characteristics

Vertebrates animals have got a spinal column or a internal skeleton.They have three main part: the head, trunk and extremities.Their nervous system and sense organs are very well- developed

Groups of vertebrates

We can classify vertebrates into five groups: fish , amphibians , birds, mammals, reptiles

Fish

Fish have got a long body that is covered with scales. They breathe with gills and they use their fins to swim.

Almost all fish are oviparous. The females produce eggs and lay them in the water. Most fish are also some herbivorous and omnivorous. All fish have got a skeleton, but there are two difference types.Bony fish and cartilaginous fish.

Amphibians

When they are young they have gills to breathe underwater.

When they are adult they have got lungs to breathe air, but they can absorb oxygen through their skin. Cuatenous respiration.

They are oviparous animals.

Most of them are carnivores. They eat insects, crustaceans, sanils, worms and small fish.

The two main groups of amphibians

Frogs and toads

Salamanders and newts

Reptiles

They have got hard scales on their bodies. They breathe by lungs.

Reptiles are oviparous.

Many are carnivores and others are herbivores.

They main groups are: lizards, snakes, turtles and crocodliles.

Reptiles

Birds

Birds have got feathers on their body, and also two legs and two wings.

They breath by lungs, they are oviparous and they have got aerodynamic bodies.

They can be herbivorous, granivorous, insectivorous, carnivorous or omnivorous.

Mammals

They usually got some hair on their bodies. All of them have lungs to breathe air. Female have got mmary glands to produce milk to feed their young.

They can be carnivores, herbivores, insectivorous or omnivorous.

Mammals