Question

Angiosperms differ from gymnosperms.

• A. In the type of secondary growth.
• B. In geographical distribution.
• C. In the nature and enclosure of ovule.
• D. In the dispersal of seeds.

Answer 1

The correct option is C

In the nature and enclosure of ovule.

The correct option is C:

Explanation of the correct option:

Option C:

1. In gymnosperms, the ovules are not enclosed by the ovary wall.
2. They have naked seeds.
3. In angiosperms, the seeds are present in mature ovaries (fruit).
4. They have covered or enclosed seeds.

Explanation of the incorrect option:

Option A:

Gymnosperms and some angiosperms which are dicot show secondary growth.

Option B:

Gymnosperms and angiosperms are the major group of vascular seed plants and do not differ in geographical distribution.

Option D:

1. Gymnosperms do not bear flowers.
2. The pollen produced is dispersed by insects (entomophily), air (anemophily), etc.
3. Angiosperms bear unisexual or bisexual flowers.
4. Pollination occurs by wind, water, or animals.

Final answer: Angiosperms differ from gymnosperms in the nature and enclosure of the ovule.