Pollination is essential in angiospermic plants because

Options

A. It decreases the time required for fertilization.
B. both of the male and female gametes are non-motile and they need to be brought together for fertilization .
C. it is useless process that does not affect the time of fertilization.
D. Both A and B

Answer

To solve the question regarding the importance of pollination in angiospermic plants, we can break down the concepts step by step.

### Step-by-Step Solution:

1. **Definition of Angiospermic Plants**:
- Angiospermic plants, also known as flowering plants, are characterized by the presence of flowers and seeds enclosed within a fruit.

**Hint**: Remember that angiosperms are the group of plants that produce flowers and seeds.

2. **Understanding Pollination**:
- Pollination is the process of transferring pollen grains from the male anther (part of the stamen) to the female stigma (part of the pistil) of a flower.

**Hint**: Pollination involves the movement of pollen grains, which carry male gametes.

3. **Role of Male and Female Gametes**:
- In angiosperms, the male gametes are produced in the pollen grains, while the female gametes are produced in the embryo sac within the ovule.

**Hint**: Identify where male and female gametes are produced in angiospermic plants.

4. **Non-Motility of Gametes**:
- Both male and female gametes in angiosperms are non-motile, meaning they cannot move on their own. Therefore, they need to be brought together for fertilization to occur.

**Hint**: Non-motile gametes require a mechanism (pollination) to facilitate their union.

5. **Importance of Pollination for Fertilization**:
- Pollination is essential because it decreases the time required for fertilization by ensuring that the male and female gametes come into contact. This is crucial for the formation of the zygote, which develops into an embryo.

**Hint**: Think about how pollination directly impacts the fertilization process.

6. **Conclusion**:
- The correct answer to the question is that pollination is essential in angiospermic plants because it facilitates the meeting of non-motile male and female gametes, thus enabling fertilization to occur.

**Hint**: Summarize the key reasons why pollination is necessary for angiospermic plants.

### Final Answer:
Pollination is essential in angiospermic plants because it decreases the time required for fertilization by bringing together non-motile male and female gametes.