Pollination

Which structure houses a plant's pollen prior to pollination?

• stamen

• pistil

• petal

• stem

How does the pollination of most trees and grasses differ from the pollination of flowers?

• Trees and grasses self-pollinate; flowers must get pollen from other flowers.

• Trees and grasses pollinate in the springtime; flowers pollinate in the fall.

• Trees and grasses are often pollinated by wind; flowers are often pollinated by insects.

• Trees and grasses have large, heavy grains of pollen; flowers have small, fine grains of pollen.

What can you infer about a brightly-colored flower?

• It can only be pollinated by birds, not insects.

• It has a greater chance of pollination than a dull-colored flower.

• Its pollen is probably the same bright color.

• It is probably pollinated by an insect that is attracted to that color.

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How does insect pollination benefit the insect?

• The insect uses the fertilized ovule as food.

• The insect uses the plant's nectar as food.

• The insect uses the plant's pollen as food.

• The insect uses the plant's leaves and petals as food.

Honeybees and flowers are linked in a mutually beneficial relationship. What is a "mutually beneficial relationship?"

• A relationship in which one participant benefits but the other does not.

• A relationship in which neither participant benefits.

• A relationship in which one participant benefits but the other is harmed.

• A relationship in which both participants benefit.

Pollen is to stamen as ___________ is to pistil.

• ovule

• anther

• honeybee

• wind

Place the following events in sequence:

A) Pollen is deposited on a pistil;

B) Pollen fertilizes an ovule;

C) A honeybee collects pollen

• B, C, A

• A, C, B

• C, A, B

• B, A, C

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What is another name for a fertilized ovule?

• a pistil

• a stamen

• an anther

• a seed

How does a honeybee collect pollen?

• It swallows the pollen.

• It brushes against the pollen as it collects nectar.

• It puts the pollen in a special pouch in its abdomen.

• It rubs the pollen on its wings.

What can you infer about flowers that are pollinated by bats (which are nocturnal animals)?

• They are probably located in caves.

• They probably contain no pollen.

• They probably bloom at night.

• They are probably very brightly colored.