Understanding Flower Types and Pollination

What is a characteristic of a complete flower?

• It lacks sepals and petals.

• It has both stamens and pistils.

• It can only be radially symmetrical.

• It is always unisexual.

Which type of flower can be divided into two equal halves along more than one plane?

• Incomplete flower

• Radially symmetrical flower

• Bilateral flower

• Unisexual flower

What is a key advantage of cross-pollination over self-pollination?

• It is less energy-intensive.

• It produces fewer seeds.

• It results in a more diverse gene pool.

• It always occurs in dioecious plants.

How do dioecious plants prevent self-pollination?

• By maturing anthers and stigmas at the same time.

• By having separate male and female flowers on different plants.

• By having both male and female flowers on the same plant.

• By being radially symmetrical.

In some bisexual flowers, how is self-pollination reduced?

• By having only one type of flower on the plant.

• By producing fewer pollen grains.

• By being bilaterally symmetrical.

• By having stigmas and anthers mature at different times.