The life cycle of any sexually reproducting plant, there is an alternation of generation between (A)____ producing by haploid gametophyte and (B)____ producing by diplod Sporophyte.

Answer

To solve the question regarding the life cycle of sexually reproducing plants and the alternation of generations, we can break it down step by step:

### Step-by-Step Solution:

1. **Understanding the Terms**:
- In the life cycle of sexually reproducing plants, there are two main generations: the **gametophyte** and the **sporophyte**.
- The **gametophyte** is haploid (n), meaning it has one set of chromosomes.
- The **sporophyte** is diploid (2n), meaning it has two sets of chromosomes.

2. **Identifying the Process**:
- The life cycle begins with **spores** produced by the diploid sporophyte.
- These spores undergo mitosis to develop into the haploid **gametophyte**.

3. **Gamete Production**:
- The **gametophyte** produces male and female **gametes** (sperm and egg cells).
- This process is crucial as it allows for sexual reproduction.

4. **Fertilization**:
- The male and female gametes fuse during fertilization to form a **zygote**.
- The zygote is diploid and develops into the sporophyte.

5. **Completion of the Cycle**:
- The sporophyte eventually produces spores, completing the cycle.
- Thus, the cycle alternates between the haploid gametophyte producing gametes and the diploid sporophyte producing spores.

6. **Filling in the Blanks**:
- For part (A), we need to identify what is produced by the haploid gametophyte: **gametes**.
- For part (B), we need to identify what is produced by the diploid sporophyte: **spores**.

### Final Answer:
(A) gametes producing by haploid gametophyte and (B) spores producing by diploid sporophyte.

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