The trees growing in desert will

Options

A. (a) Show alternate rings of xylem and sclerenchyma
B. (b) Show distinct annual rings
C. (c) Not show distinct annual rings
D. (d) Have only conjunctive tissue and phloem formed by the activity of cambium

Answer

### Step-by-Step Solution:

1. **Understanding the Environment**:
- Trees growing in deserts are adapted to survive in extreme conditions, characterized by low water availability and high temperatures. These trees are known as xerophytes.

2. **Defining Xerophytes**:
- Xerophytes are plants that thrive in dry environments. They have special adaptations that allow them to conserve water and tolerate high temperatures.

3. **Annual Rings Formation**:
- In typical trees, annual rings are formed due to the activity of the cambium layer, which is more active in spring (producing wider xylem) and less active in autumn (producing narrower xylem). This variation leads to distinct annual rings.

4. **Desert Conditions**:
- In desert environments, the climate is relatively constant with no significant seasonal changes. As a result, the cambium does not exhibit the same variation in activity throughout the year.

5. **Conclusion on Annual Rings**:
- Since desert trees experience a uniform climate with no distinct seasons, they do not form distinct annual rings. Therefore, the correct statement regarding trees growing in deserts is that they do not show distinct annual rings.

6. **Evaluating Options**:
- Option A: Incorrect, as desert trees do not have alternating rings due to lack of seasonal variation.
- Option B: Incorrect for the same reason.
- Option C: Correct, as desert trees do not show distinct annual rings.
- Option D: Incorrect, as there is no significant cambium activity to form phloem and conjunctive tissue distinctively.

### Final Answer:
- The correct answer is **C: do not show distinct annual rings**.