5.1 Food and Oxygen

Which organism uses the above shown organ to exchange oxygen with the environment?

• crab

• rabbit

• starfish

• butterfly

Scientists found the bones of an extinct prehistoric animal. Which bones would provide the best clues about the animal's eating habits?

• skull

• backbone

• leg bones

• ribs

Which organisms get oxygen during the day and night from the surrounding air or water in which they live?

• pine trees

• algae

• turtles

• ferns

Animals get energy from ______, either by eating them or by eating other animals that eat them

• soil

• rocks

• the sun

• plants

Animals use food and oxygen together to produce the ______ necessary for life.

• digestion

• chlorophyll

• energy

• respiration

A cheetah is a large cat. Unlike other cats, it is awake and active during the day. The cheetah relies more on its sight than its smell. It can run at speeds greater than 40 miles per hour and can also creep very slowly without being detected by other animals. The cheetah uses these special features and behaviors to ______ food.

• eliminate

• obtain

• produce

• photosynthesize

Why would an animal migrate?

• to find a friend

• to find more food

• to reduce its food supply

• to be alone

______ have unique features and behaviors that allow them to obtain the type of food they need.

• Producers

• Mushrooms

• Plants

• Animals

A ______ gets energy from eating plants

• deer

• hawk

• snake

• wolf

In humans, during the process of respiration, energy comes from oxygen and ______.

• the products of carbon dioxide

• the products of digestion

• the products of photosynthesis

• the products of excretion