Which of the following is found in earthworm?

Options

A. Lateral ventricle
B. Lateral hearts
C. Lateral spiracles
D. Spiracles

Answer

To determine which of the following is found in earthworms, we will analyze the options provided:

1. **Lateral Ventricle**:
- Earthworms do not have a heart that is divided into chambers like a lateral ventricle. The heart of an earthworm is not structured in this way; it consists of a series of muscular vessels that pump blood. Therefore, this option is incorrect.

2. **Lateral Hearts**:
- Earthworms possess lateral hearts, which are blood-pumping organs located in segments 7 and 9 of their body. These lateral hearts are aligned laterally and play a crucial role in the circulation of blood within the earthworm. This option is correct.

3. **Lateral Spiracles**:
- Lateral spiracles are respiratory structures found in insects, such as cockroaches, and are not present in earthworms. Therefore, this option is also incorrect.

Based on the analysis above, the correct answer is **lateral hearts**.

### Step-by-Step Solution:
1. Identify the structures mentioned in the options.
2. Analyze the structure of the heart in earthworms.
3. Determine the presence or absence of each option in earthworms.
4. Conclude with the correct answer based on the analysis.