Animals - created from Mind Map

Seite 1

Invertebrates

Vertebrates

An invertebrate is an animal that does not have a backbone or an internal skeleton

live in water and on land

There are more than 1 million different kinds of invertebrates.

Invertebrates are divided into 12 phyla

Porifera (sea sponges) the simplest invertebrates of all animals. (aquatic creatures)

cnidaria (hydras, jellyfish, sea anemones and corals) Most cnidarians have arm-like structures called tentacles around their mouths.

annelids (earthworms) They live in water or damp soil, Their bodies are long, rounded, and divided into ring-like segments.

arthropods (crabs, spiders and insects) live in water and on land and some can fly They have a hard outer body covering and jointed legs

molluscs (octopus,mussels) are found on land or in fresh water,have soft bodies and are covered by a thin tissue called a mantle.

echinoderms (starfish) Echinoderms only live in marine ecosystem Echinoderms have a hard covering made up of hard skins and spines.

All vertebrates belong to the phylum. They are called chordates.

Vertebrates have an internal skeleton that supports their bodies.

An internal skeleton is called an endoskeleton.

Vertebrates can be divided into five more groups: mammals, birds, fish, reptiles, amphibians.

Fish: are animals which have scales, and fins on the thorax, stomach, back and tail and they are tube-shaped. They can be carnivorous, omnivorous and herbivorous, There are two types: Cartilaginous fish and Bony fish,

Amphibians: Some of them lead two lives, the first is a life in water and the second is a life on land. They are carnivorous and oviparous. They need a lot of humidity to survive.

Reptiles: They have lungs and breathe air, they also have hard scales. Reptiles put their eggs on land

Birds: They have have feather and do not have teeth. They are oviparous.

Mammals: mammals feed milk to their young, the milk is made in organs called mammary glands. Mammals live in all the different ecosystem and they are warm-blooded.