How many of the given features are associated with algae?
Embryophytes,
Planogametes,
Tracheophytes,
Unicellular sex organs,
Zoospores

Options

A. (a) Two
B. (b) Three
C. (c) Five
D. (d) Four

Answer

To determine how many of the given features are associated with algae, we will analyze each feature one by one.

1. **Embryophytes**:
- Embryophytes are land plants that retain their embryos on the maternal body. This characteristic is not associated with algae, which are primarily aquatic plants. Therefore, this feature does not apply to algae.

2. **Planogametes**:
- Planogametes are haploid and motile gametes. Algae possess planogametes, which are involved in their reproductive processes. This feature is indeed associated with algae.

3. **Tracheophytes**:
- Tracheophytes are vascular plants that have a well-developed vascular system. Algae do not have a vascular system; they are simpler and do not possess this feature. Thus, this feature does not apply to algae.

4. **Unicellular sex organs**:
- Algae can have unicellular and non-jacketed sex organs. This characteristic is associated with algae, as they often reproduce using simple structures.

5. **Zoospores**:
- Zoospores are motile spores that possess flagella. Algae produce zoospores, which are a form of asexual reproduction. This feature is also associated with algae.

Now, summarizing the analysis:
- Features associated with algae:
- Planogametes (Yes)
- Unicellular sex organs (Yes)
- Zoospores (Yes)

- Features not associated with algae:
- Embryophytes (No)
- Tracheophytes (No)

Therefore, out of the five features, three are associated with algae.

**Final Answer**: 3 features are associated with algae.

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