Invertebrates

What invertebrate groups has animals with "soft bodies?"

• Arthropods
• Echinoderms
• Mollusks
• Sponges

What is a hard external covering?

• Arthropod
• Endoskeleton
• Flagella
• Exoskeleton

What animal filters food through pores?

• Arthropod
• Echinoderm
• Sponge
• Segmented Worm

What structure to segmented worms have to allow them to move?

• legs
• setae
• scales
• jet propulsion

True or False: Arthropods are the only invertebrate that can fly.

• True
• False

What invertebrate group has a water vascular system?

• Echinoderms
• Sponges
• Mollusks
• Arthropods

What is the water vascular system used for?

• obtaining food and oxygen
• movement
• obtaining food and oxygen and movement
• none of the options above

Sponges are animals that

• are asymmetrical

• have bilateral symmetry

• have radial symmetry

Segmented Worms are animals that

• are asymmetrical

• have bilateral symmetry

• have radial symmetry

Mollusks are animals that

• are asymmetrical

• have bilateral symmetry

• have radial symmetry