Interactive Life Science: Chapter 8 Animal Life Processes

Which of these provides support and protection for many insects?

• muscle

• skeleton

• spinal cord

• exoskeleton

What are the two gases that animals exchange with their surroundings?

• oxygen and nitrogen

• nitrogen and helium

• hydrogen and carbon dioxide

• carbon dioxide and oxygen

Suppose that you close a window because you notice that rain is falling. Your action in closing the window is a(n)

• involuntary reaction.

• depressant

• stimulus.

• response.

Why are some muscles attached to bones?

• They have the same function as bones.

• They move the bone to help move the body.

• All muscles and bones are cartilage.

• They are part of the skeleton.

Which animal has the simplest and least organized nervous system?

• cnidarian

• flatworm

• planarian

• mollusk

What three systems work together to make an animal move about?

• nervous system, muscular system, and skeletal system

• nervous system, digestive system, and muscular system

• nervous system, circulatory system, and muscular system

• nervous system, digestive system, and circulatory system

An adaptation that helps amphibians move from place to place in water is

• eggs covered by jelly.

• moist skin.

• webbed feet.

• a strong skeleton.

Tiny, thin-walled blood vessels where the blood and body cells exchange substances are called

• atria.

• capillaries.

• ventricles.

• single loops.

Which animal has a digestive system most similar to a human?

• cow

• wolf

• octopus

• jellyfish

An offspring that is the result of asexual reproduction

• inherited genes from two parents.

• has two parents.

• developed from a zygote

• is genetically identical to its parent.