How many terms in the column is associated to stonewort? Protandrous, Gynandrous, Shield cells, Coronary cells, Tube cells, Archegoniophore, Globule, Monoecious

Options

A. 5
B. 6
C. 7
D. 4

Answer

To solve the question regarding how many terms are associated with stonewort (Chara), we will analyze each term provided in the question one by one.

1. **Protandrous**: This term refers to a condition where the male reproductive organs mature before the female ones. This condition is primarily seen in angiosperms, not in Chara (stonewort). Therefore, we do not count this term.

**Hint**: Check if the term is commonly associated with angiosperms or algae.

2. **Gynandrous**: This term describes a condition where the reproductive structures allow for self-pollination. While this is relevant to some plants, it is not specifically associated with Chara. Thus, we do not count this term either.

**Hint**: Consider if the term relates to self-pollination in algae or other plant types.

3. **Shield cells**: These are protective cells found in the male reproductive structure (globule) of Chara. Since shield cells are indeed part of the structure in stonewort, we count this term.

**Hint**: Identify if the term relates to male reproductive structures in algae.

4. **Coronary cells**: These cells are found in the female reproductive structure (nucleus) of Chara. Since coronary cells are part of the reproductive system of stonewort, we count this term as well.

**Hint**: Look for terms that describe parts of the female reproductive structures in algae.

5. **Tube cells**: These cells provide protection to the egg cell (oogonium) in Chara. Therefore, tube cells are associated with stonewort, and we count this term.

**Hint**: Determine if the term relates to protective structures around reproductive cells in algae.

6. **Archegoniophore**: This structure is associated with the female gametes in pteridophytes and is not found in Chara. Therefore, we do not count this term.

**Hint**: Check if the term is specific to certain plant groups like pteridophytes.

7. **Globule**: The globule is a male reproductive structure in Chara, where male gametes are produced. Thus, we count this term.

**Hint**: Identify if the term refers to male reproductive structures in stonewort.

8. **Monoecious**: This term describes a plant that has both male and female reproductive organs in the same individual. Chara is monoecious, so we count this term.

**Hint**: Consider if the term indicates the presence of both reproductive types in the same organism.

Now, let's summarize the terms associated with stonewort:
- Shield cells
- Coronary cells
- Tube cells
- Globule
- Monoecious

In total, there are **5 terms** associated with stonewort.

**Final Answer**: 5 terms are associated with stonewort.