Refer to the given dichotomous key and answer the following questions.
I. (a) The cells of tissue have walls. -Go to II
(b) The cells of tissue have no walls. -Go to III
II. (a) It is made of only one type of cells. - Go to IV
(b) It is made of more than one type of cells. - Go to V
III. (a) The tissue lines the fallopian tubes. - R
(b) The tissue transports nutrients. - S
IV. (a) Cells store air. - P
(b) It is mainly a mechanical tissue. - U
V. (a) The tissue conducts water. - T
(b) The tissue conducts organic nutrients. - Q
Select the correct match of tissue and its location in body.

Options

A. P - Apical meristem, R - Skin
B. Q- Epidermal covering of leguminous seeds, U - Leaf petiole
C. S - Fruit pulp, T - Bone cavities
D. R - Bronchioles, U - Grit of guava

Answer

To solve the question using the provided dichotomous key, we will follow the steps outlined in the key to identify the correct match of tissue and its location in the body.

### Step-by-Step Solution:

1. **Identify if the tissue has walls or not:**
- The first question states: "The cells of tissue have walls."
- If the answer is **yes**, we proceed to step II. If the answer is **no**, we proceed to step III.

2. **Proceed with the appropriate branch:**
- Since we are dealing with plant and animal tissues, we assume the cells of tissues have walls (plant cells).
- Go to **II**.

3. **Determine the type of cells in the tissue:**
- In step II, we have:
- (a) It is made of only one type of cells. (Simple tissue)
- (b) It is made of more than one type of cells. (Complex tissue)
- If it is made of only one type of cell, we go to **IV**. If it is made of more than one type of cell, we go to **V**.

4. **Identify the type of tissue:**
- If we assume it is complex tissue (more than one type of cell), we go to **V**.

5. **Determine the function of the complex tissue:**
- In step V, we have:
- (a) The tissue conducts water. (Xylem)
- (b) The tissue conducts organic nutrients. (Phloem)
- If it conducts water, it is **T** (Xylem). If it conducts organic nutrients, it is **Q** (Phloem).

6. **Now, let's consider the second part (animal tissue):**
- If the cells of the tissue have no walls, we go to **III**.
- In step III, we have:
- (a) The tissue lines the fallopian tubes. (Ciliated epithelium)
- (b) The tissue transports nutrients. (Blood)
- If it lines the fallopian tubes, it is **R** (Ciliated epithelium). If it transports nutrients, it is **S** (Blood).

7. **Final identification:**
- From the above steps, we can summarize:
- For plant tissue: If complex, it could be either Xylem (T) or Phloem (Q).
- For animal tissue: It could be either Ciliated epithelium (R) or Blood (S).