Science Unit Test 2

Clams and oysters are types of ____

• Crustaceans

• Cnidarians

• Mollusks

• Echinoderms

Which of these arthropods has the most body sections?

• An insect

• A crustacean

• A centipede

• An arachnid

The word symmetry refers to a body's ____

• Bones

• Color

• Shape

• Energy

What do sponges and arthropods have in common?

They have NO _________

Which of the following have exoskeletons?

• Echinoderms

• Arthropods

• Flatworms

• Cnidarians

This system consists of the brain spinal cord nerves and sense organs.

• Respiratory

• Nervous

• Circulatory

This system is made of strong tissues called muscles.

• Respiratory

• Digestive

• Muscular

The heart blood and blood vessels make up this system.

• Circulatory

• Respiratory

This system brings oxygen to the blood and removes waste from the blood

• Circulatory

• Respiratory

The liver kidneys bladder skin and lungs are organs of this system

• DigestiveDigestive

• Excretory