arthropods molluscs cnidarians annelids echinoderms · colegio bilingüe la asunción natural...

Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 6 INVERTEBRATES

Estefanía López Santos 1

ARTHROPODS

MOLLUSCS

CNIDARIANS

ANNELIDS

ECHINODERMS

Invertebrates Unit 6 Invertebrates

Natural Science Primary 3

Colegio Bilingüe La Asunción

Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 6 INVERTEBRATES

Estefanía López Santos 2

Crab

Butterfly Grasshopper Bee

Spider Fly Centipede

Ant

They have an exoskeleton body.

They have jointed legs.

It is the most diverse group.

They live in water and on land.

Arthropods

Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 6 INVERTEBRATES

Estefanía López Santos 3

Snail

Clams Octopus Mussels Squid

Slug

They have soft bodies.

Some have a protective shell.

They live in water and on land.

Molluscs

Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 6 INVERTEBRATES

Estefanía López Santos 4

Jellyfish

Sea anemone Sea anemone Coral Coral

Sponge

Their bodies are polyp or sack shaped.

They have a hole to digest their food.

Some of them have tentacles.

They live in water, and most, in the sea.

Cnidarians

Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 6 INVERTEBRATES

Estefanía López Santos 5

Leeches Earthworm

Most worms are annelids.

Their bodies are soft, long and cylindrical which are divided into rings.

Millipede and centipede aren´t annelids.

They live in water or in moist soil.

Annelids

Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 6 INVERTEBRATES

Estefanía López Santos 6

Starfish Sea cucumber Sea urchin

They are protected by an external skeleton.

They live among rocks or sand.

They move slowly

They live in water.

Echinoderms