Plant sexual reproduction L.C. Biology

Angiosperms have...

• female flowers.

• male flowers.

• both flowers.

A male reproductive structure in a flower is called a(n) ___.

• Stamen

• Pistil

• Ovary

• Stigma

Type of pollination that produces the greatest variation in characteristics

• Cross-pollination

• Self-pollination

Pollen grains collect on the ___ of a flower, which is often sticky or feathery.

• Anther

• Stamen

• Ovary

• Stigma

Each Stamen consists of a thin supporting stalk called a(n)_____.

• Filament

• Ovary

• Stigma

• Sepal

Which part of the flower develops into a fruit?

• Petals

• Ovary

• Anther

• Stem

What must happen for fertilization to occur in flowering plants

• The plant must be exposed to sunlight during pollination

• The sperm cells in the pollen tube must be able to reach the eggs in the ovules.

• The eggs in the ovules must be able to reach the top of the stigma where pollen is trapped.

• All of these

What are the parts of the pistil?

• Stigma, Style, Ovary

• Stamen, Ovary, Anther

• Anther, Filament, Style

• Filament, Stamen, Ovary

In what way are flowers adapted to help angiosperms reproduce?

• The flowers store nutrients needed for the plant to grow.

• The Flowers are an important source for human food.

• The flowers help attract animals that are needed to deliver pollen.

• None of these are considerations for reproduction.

Which structure is responsible for attracting pollinators

• Petals

• Anther

• Sigma

• Ovary