Invertebrates Review

The external skeleton of some invertebrates is called.....

What are the five main groups of invertebrates?

Sea stars, brittle stars, sea cucumbers, and sea urchins belong to this group of invertebrates.

They have jointed legs and segmented bodies.

Slugs, snails, clams, and octopuses belong to this group.

Sea stars, brittle stars, and sea cucumbers are all examples of .....

This group is the largest group of animals.

What two things are needed for all animals to obtain energy?

All animals belong in the Animal Kingdom. Animals are then broken down into what two groups?

They have long tube-like bodies divided into segments.

Insects, crustaceans, and arachnids belong to this group

What organ does a worm use to obtain oxygen?

They have tubed feet that take in oxygen from the water and spines.

They have soft bodies and most have a thick muscular foot for movement.

The simplest invertebrate

Like vertebrates, invertebrates can't make their own food.  They both are known as......