Question

1. Having flowers increases the chances of reproduction in plants that have them. Which of the following increases the chances that an animal will pollinate the flower?

a. The petals are very large
b. The presence of a gland that produces nectar
c. The flowers do not produce pollen
d. The petals are small

2. In flowering plants, the ovary develops into a structure which contains the seeds. What is the name of this structure?
a. an embryo
b. a seed coat
c. a fruit
d. a vegetable

3. Which of the following correctly lists the terms in order from smallest to largest?
a. seed, embryo, fruit
b. fruit, embryo, seed
c. embryo, seed, fruit
d. embryo, fruit, seed

4. In a particular species of plant, the female reproductive structures mature early in the morning when the flower first opens, and the anthers do not produce pollen until late in the evening. Which of the following statements is likely to be true?
a. Its flowers will likely be pollinated by insects
b. Self-pollination is unlikely
c. Self-pollination is highly likely
d. This flower is likely to wind pollinated

Answer 1

1. b. The presence of a gland that produces nectar increases the chances that an animal will pollinate the flower, as the nectar serves as a reward for the pollinator and encourages it to visit the flower and transfer pollen.

2. c. In flowering plants, the ovary develops into a structure called a fruit, which contains the seeds.

3. c. The correct order from smallest to largest is: embryo, seed, fruit. The embryo is the earliest stage of development after fertilization, the seed is the mature ovule containing the embryo and stored food, and the fruit is the mature ovary containing the seeds.

4. a. Its flowers will likely be pollinated by insects, as they are active during the day and the female reproductive structures are available to receive pollen at that time. The anthers producing pollen in the evening suggests that the plant relies on pollinators to transfer pollen from other flowers of the same species.