Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F).
(i) The epithelium of proximal convoluted tubule (PCT) of nephron in the kideney has microvilli.
(ii) Simple epithelium covers the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and of pancreatic ducts.
(iii) The wall of internal organs such as the blood vessels, stomach and intestine contains skeletal muscle.
(iv) The earthworm nervous system is basically represented paired nerve cord.

Options

A. (i) - T, (ii) - F, (iii) - F, (iv) - T
B. (i) - F, (ii) - F, (iii) - T, (iv) - T
C. (i) - T, (ii) - T, (iii) - F, (iv) - F
D. (i) - T, (ii) - F, (iii) - T, (iv) - F

Answer

To determine the truthfulness of the given statements, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement (i)**: "The epithelium of proximal convoluted tubule (PCT) of nephron in the kidney has microvilli."
- **Analysis**: This statement is true. The proximal convoluted tubule (PCT) is lined with simple cuboidal epithelium, and the epithelial cells have microvilli on their apical surfaces to increase the surface area for reabsorption.
- **Conclusion**: True (T)

2. **Statement (ii)**: "Simple epithelium covers the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and of pancreatic ducts."
- **Analysis**: This statement is false. The dry surface of the skin is covered by keratinized stratified epithelium, not simple epithelium. The moist surfaces like the buccal cavity and pharynx are lined with non-keratinized stratified epithelium, not simple epithelium.
- **Conclusion**: False (F)

3. **Statement (iii)**: "The wall of internal organs such as the blood vessels, stomach, and intestine contains skeletal muscle."
- **Analysis**: This statement is false. The walls of these internal organs are primarily composed of smooth muscle, which is involuntary, not skeletal muscle. Skeletal muscle is generally associated with voluntary movements and is not found in these organs.
- **Conclusion**: False (F)

4. **Statement (iv)**: "The earthworm nervous system is basically represented by a paired nerve cord."
- **Analysis**: This statement is true. The nervous system of an earthworm consists of a ventral nerve cord with segmentally arranged ganglia, which is characteristic of its nervous system structure.
- **Conclusion**: True (T)

### Final Summary of Statements:
- Statement (i): True (T)
- Statement (ii): False (F)
- Statement (iii): False (F)
- Statement (iv): True (T)

### Correct Option:
The correct option based on the analysis is:
- (i) T, (ii) F, (iii) F, (iv) T