Both flatworms and roundworms have

Which of the following belongs to the class Amphibia?

What kind of anthropod has exactly eight legs?

About 95 percent of all animal species are __________.

Echinoderms have spiny skin.

Humans are chordates and have notochords INSTEAD of a backbone.

All mollusks have shells.

Which of the following is a characteristic of a member of the animal kingdom?

Which of the following is a name for the structure that protects the spinal cord?

Which of the following is NOT a characteristic of all Chordates?

Reptiles breath

Which of the following is NOT a characteristic of members of the animal kingdom?

Vertebrates make up the majority of the animal kingdom.

Tube feet are used to move and to pull open prey.

All animals digest their food.

Which is the simplest invertebrate that is asymmetrical and has no tissues or organs?

Which of the following lists all the major groups of vertebrates?

All anthropods have an external covering called the

____________ make up the largest group of anthropods.

sea stars and jellyfish have this type of symmetry

an animal with a backbone

an animal that does not have a backbone

In which phylum are Porifera?

In which phylum are Annelida?

In which phylum are Echinodermata?

In which phylum are Arthropoda?

In which phylum are Cnidaria?