Reproduction in Plants and Animals

Some students are observing the behavior of a male bird in the schoolyard. Which of the following behaviors might increase the probability of reproductive success?

• Made a chirping sound

• Hopped along a tree branch

• Flew from a tree to the ground

• Flew away when a cat appeared

Tags

NGSS.MS-LS1-4

NGSS.MS-LS4-4

The Articum lappa plant produces prickly burrs that grow on the ends of the stems. These burrs can easily catch on the fur of animals. This plant structure most likely benefits the plant in which of the following ways?

• Increases the plant's water absorption

• attracts animals to come near the plant

• keeps the plant warmer

• helps the plant transport its seeds

Tags

NGSS.MS-LS1-4

Which of the following plant adaptations allows plants to use animals to transport their seed to new locations?

• Long vines

• Strong stems

• Sweet fruit

• Large leaves

Why do male peacocks have brightly colored feathers?

• The feathers will keep away the peahens (because the peahens are afraid of the brightly colored feathers.

• The feathers are used to help the peacock hunt for food. The male peacocks' feathers attract different types of insects.

• They are competing for mates. The females will be attracted to the male peacocks with the biggest and brightest tail feathers.

• They are competing for food. The males with the most colorful feathers will catch the most of the food such as small mammals, reptiles, small snakes, ants, millipedes, crickets, termites, centipedes, locust and scorpions.

Tags

NGSS.MS-LS1-4

What specialized plant structure increases the probability of successful reproduction?

• Brightly colored petals

• Strong roots

• Dark green leaves

• The ability to hold in more water

Tags

NGSS.MS-LS1-4

What is another reason why a male peacock has brightly colored feathers?

• hides from predators and blends in with the habitat

• scare off female birds because it does not want a mate

• find food to eat when there is not enough to eat in their habitat

• the predator will be attracted to the male, so the female will be safe

Female reproductive organ that produces eggs-

• anther

• ovary

• petal

• pista

The colorful leaf-like structures of flowers

• ovary

• pistil

• petal

• stamen

The part of a flower that contains the pollen

• anther

• ovary

• pistil

• stamen

A female structure of the flower that contains the stigma, style, and ovary

• anther

• petal

• stamen

• pistil