This uses mimicry as a defence mechanism

Options

A. Date Palm
B. Caladium
C. Opuntia
D. Jatropha

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which of the given options uses mimicry as a defense mechanism. Mimicry in biology refers to the phenomenon where one organism resembles another, providing it with some form of protection or advantage.

2. **Identifying the Options**: The options provided are:
- A) Dead Palm
- B) Chaladium
- C) Opuntia
- D) Jatropha

3. **Defining Mimicry**: Mimicry can be classified into different types, such as Batesian mimicry, where a harmless organism resembles a harmful one to avoid predation.

4. **Analyzing Each Option**:
- **Dead Palm**: There is no significant evidence that Dead Palm uses mimicry as a defense mechanism.
- **Chaladium**: This plant exhibits Batesian mimicry. The leaves of Chaladium resemble the damage caused by larvae of mining moths. This resemblance prevents female moths from laying eggs on them, thus protecting Chaladium.
- **Opuntia**: This plant does not exhibit any known mimicry that serves as a defense mechanism.
- **Jatropha**: Similar to Opuntia, Jatropha does not show mimicry as a defense mechanism.

5. **Conclusion**: Based on the analysis, Chaladium is the only option that uses mimicry as a defense mechanism. Therefore, the correct answer is **B) Chaladium**.