Question

Which of the following traits characterizes gymnosperms?

a. The plants carry exposed seeds on modified leaves.

b. Reproductive structures are located in a flower.

c. After fertilization, the ovary thickens and forms a fruit.

d. The gametophyte is the longest phase of the life cycle.

Short answer

The correct option is (a). The plants carry exposed seeds on modified leaves.

Step-by-step solution

Step 1

• Gymnosperms are group of plants in which the ovules aren't enclosed within the ovary wall.
• They are considered to be "naked seed"plants.

Step 2

• Reproductive structures are located in the flower. After fertilization, the ovary thickens and forms a fruit.

Step 3

Some of the examples of gymnosperms are Cycas, Pinus, Cudrus, Larix.