what is true

Options

A. hygrophytes have isobilateral astomatic leaves
B. hygrophytes have aerenchyma
C. most of hygrophytes have hydathodes
D. xerophytes have more lenticels but thin cuticle.

Answer

To determine which statement is true regarding hydrophytes and xerophytes, let's analyze each option step by step.

### Step-by-Step Solution:

1. **Evaluate the first statement: "Hygrophytes have isobilateral or stomatic leaves."**
- **Analysis:** Hydrophytes typically have leaves with stomata for gas exchange, but they do not have isobilateral leaves. Therefore, this statement is **false**.

2. **Evaluate the second statement: "Hygrophytes have aranchyma."**
- **Analysis:** Aranchyma, which refers to a type of tissue with large air spaces, is actually absent in hydrophytes. Thus, this statement is also **false**.

3. **Evaluate the third statement: "Most of hygrophytes have hydathodes."**
- **Analysis:** Hydathodes are indeed present in most hydrophytes and are responsible for the secretion of water, particularly in aquatic plants. This statement is **true**.

4. **Evaluate the fourth statement: "Xerophytes have more lenticels but thin cuticle."**
- **Analysis:** Xerophytes typically have a thick cuticle to prevent water loss and do not have more lenticels; in fact, they often lack lenticels altogether. Therefore, this statement is **false**.

### Conclusion:
The only true statement among the options provided is: **"Most of hygrophytes have hydathodes."**