Life Science Review 8

Ants and other insects

• do not have a skeleton

• have a skeleton like humans

• have an exoskeleton

• use their skeleton to digest food

Flowers are

• the reproductive structures of plants

• where plants make food for the sun

• colored to warn off animals who would eat them

• where water enters the plant

The skin

• helps to digest food

• protects the body against harmful substances

• removes waste from the blood

• helps the body breathe

Vertebrates include which kind of animals?

• crabs

• insects

• reptiles

• worms

Which type of blood vessels carry blood back to the heart?

• aorta

• veins

• arteries

• capillaries

Which plant part is responsible for protecting and dispersing seeds?

• stem

• roots

• flower

• fruit

Nonflowering plants have __________ instead of flowers and seeds.

• thorns

• petals

• pollen

• spores