Ch. 11 Life Science Quiz C

Which support system is a rigid covering that supports an animal from outside its body?

• endoskeleton

• exoskeleton

• hydrostatic skeleton

• jointed skeleton

Which animal uses a muscular siphon to move quickly through the water?

• clam

• octopus

• Portuguese man'o war

• shark

What are the electrical signals that are used to control an animal's actions?

• flexors and extensors

• neutrons

• nerve impulses

• nerve nets

The force required to push an animal upward through water or air is called ________.

• lift

• neurons

• locomotion

• nerve nets

Special cells that collect information and carry nerve impulses are called _______.

• lift

• neurons

• locomotion

• nerve net

How does a non-sessile organism without any muscular system move aroung?

• lift

• passive locomotion

• water

• flow