A parasite that lives within a plant tissue is called as
(a) ectophyte
(b) endophyte
(c) epiphyte
(d) hydrophyte

Options

A. ectophyte
B. endophyte
C. epiphyte
D. hydrophyte

Answer

To solve the question "A parasite that lives within a plant tissue is called as," we need to analyze the options provided:

1. **Understanding the options:**
- (a) **Ectophyte**: This term generally refers to organisms that live on the surface of plants, not within the tissues.
- (b) **Endophyte**: This term refers to organisms that live inside plant tissues. They can be beneficial or harmful to the host plant.
- (c) **Epiphyte**: This term refers to plants that grow on other plants but do not take nutrients from them; they live on the surface.
- (d) **Hydrophyte**: This term refers to plants that grow in water or very moist environments.

2. **Identifying the correct term:**
- Since the question specifically asks for a parasite that lives within plant tissue, we focus on the term "endophyte." Endophytes can be parasitic, living inside the plant tissues and deriving nutrients from the host.

3. **Conclusion:**
- The correct answer is (b) **endophyte**.

### Step-by-Step Solution:
1. Read the question carefully to identify what is being asked.
2. Analyze each option to determine its meaning and relevance to the question.
3. Identify that "endophyte" is the term that describes a parasite living within plant tissues.
4. Conclude that the correct answer is (b) **endophyte**.