Animal Structures and Circulation Review

Which three things do all animals need to survive?

• food, water, and light

• water, air, and light

• water, air, and food

• food, air, and light

The digestive system is responsible for

• pumping blood throughout the body.

• breaking down food into smaller pieces.

• exchanging gasses in the lungs.

• transporting nutrients through the bloodstream.

Food starts to break down in the

• stomach

• small intestine

• large intestine

• mouth

What do the lungs of an animal do?

• take in air

• create energy

• help with digestion

• moves food throughout the body

Animals that eat meat usually have

• large and flat teeth.

• small and sharp teeth.

• short and flat teeth.

• long and sharp teeth.

What does the digestive system of an animal do?

• mixes food into tiny pieces

• mixes food with digestive juice

• removes any waste products

• all of the above

What part of the circulatory system carries blood away from the heart?

• veins

• arteries

• plasma

• capillaries

Birds with short beaks usually eat

• snakes

• seeds and nuts

• insects

• larva

The ______ stirs an animal's food and mixes it with digestive juices.

• stomach

• esophagus

• large intestine

• small intestine

Blood carries

• water

• gases

• digested food

• all of the above