Hemocoel is found is

Options

A. Hydra
B. Ascaris
C. Earthworm
D. Cockroach

Answer

To determine where hemocoel is found, we need to analyze the options provided in the question.

### Step-by-Step Solution:

1. **Understanding Hemocoel**:
- Hemocoel is a type of body cavity that is filled with blood (hemolymph) and is characteristic of organisms with an open circulatory system. In these organisms, the blood bathes the organs directly rather than being confined to blood vessels.

2. **Reviewing the Options**:
- **A. Hydra**: Hydra belongs to the phylum Cnidaria, which has a gastrovascular cavity but not a hemocoel.
- **B. Ascaris**: Ascaris is a roundworm belonging to the phylum Nematoda. It also does not have a hemocoel; it has a pseudocoelom.
- **C. Earthworm**: Earthworms belong to the phylum Annelida. They have a true coelom but not a hemocoel.
- **D. Cockroach**: Cockroaches belong to the phylum Arthropoda. They possess a hemocoel as part of their open circulatory system.

3. **Identifying the Correct Answer**:
- Based on the analysis, the only organism from the options that has a hemocoel is the cockroach (option D).

### Final Answer:
- Hemocoel is found in **D. Cockroach**.