Choose the correct statement.

Options

A. (a) Algae show embryo stage
B. (b) Algae show only haplontic life cycle
C. (c) Algae are plants as they possess cell wall, chl a and starch food.
D. (d) all of the above

Answer

To solve the question "Choose the correct statement" regarding algae, we will analyze each of the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Algae**:
- Algae belong to the group Thallophyta, which are considered the simplest and lowest forms of plants. They are primarily aquatic and can perform photosynthesis.

2. **Analyzing the Statements**:
- **Statement A**: "Algae show embryo stage."
- This statement is **false**. Algae do not produce embryos; they reproduce through methods such as binary fission, fragmentation, or spore formation. Therefore, they do not have an embryonic stage like higher plants do.

- **Statement B**: "Algae show only haplontic life cycle."
- This statement is also **false**. Algae can exhibit both haplontic and diplontic life cycles. In a haplontic life cycle, the dominant stage is haploid (having one set of chromosomes), while in a diplontic life cycle, the dominant stage is diploid (having two sets of chromosomes). For example, Chlamydomonas shows a haplontic life cycle, while Fucus shows a diplontic life cycle.

- **Statement C**: "Algae are plants as they possess cell wall, chlorophyll a, and starch as food."
- This statement is **true**. Algae are indeed classified as plants because they possess a cell wall made of cellulose, contain chlorophyll a for photosynthesis, and store energy in the form of starch. This aligns with the characteristics of plant life.

3. **Conclusion**:
- Based on the analysis above, the correct statement about algae is **Statement C**.

### Final Answer:
The correct statement is **C: Algae are plants as they possess cell wall, chlorophyll a, and starch as food.**

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