P4 Science Unit Test 2 Term 1

Which of the following are examples of mollusks?

• clam and oyster

• bee and ant

• starfish and sea urchin

• all of these

Which of these arthropods has the most body sections?

• an insect

• a centipede

• an arachnid

• a crustacean

The word symmetry refers to a body's...

• color

• energy

• bones

• shape

What do sponges and arthropods have in common?

• They have no backbones.

• They have tentacles.

• They both have outer shells.

• They stay in one place.

Which of the following have exoskeletons?

• echinoderms

• flatworms

• arthropods

• cnidarians

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

• nervous system

• skeletal system

• muscular system

• excretory system

This system consists of the frame that supports an animal's body, and protects the organs inside.

• nervous system

• skeletal system

• digestive system

• excretory system

This system is made of strong tissues called muscles.

• nervous system

• skeletal system

• muscular system

• excretory system

The heart, blood, and blood vessels make up this system.

• circulatory system

• skeletal system

• muscular system

• excretory system

This system brings oxygen to the blood and removes carbon dioxide to the blood.

• digestive system

• respiratory system

• nervous system

• muscular system