What are gemmules and conidia ? Name one organism each in which these are formed ?

Explanation

### Step-by-Step Solution:

1. **Definition of Gemmules**:
- Gemmules are a type of asexual reproductive structure found in certain organisms, particularly sponges. They are formed as a response to unfavorable environmental conditions and can survive harsh conditions. When conditions improve, gemmules can develop into new individuals.

2. **Example of an Organism with Gemmules**:
- A well-known organism that forms gemmules is **sponges**. Sponges utilize gemmules for asexual reproduction, allowing them to propagate even in challenging environments.

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