Which of the following is a hermaphrodite?

Options

A. anther and filament
B. Earthworm
C. Aphid
D. Trout

Answer

To determine which of the following is a hermaphrodite, we need to understand the definition of a hermaphrodite and analyze the given options.

### Step-by-Step Solution:

1. **Define Hermaphrodite**:
- A hermaphrodite is an organism that possesses both male and female reproductive organs. This means that a single individual can produce both sperm and eggs.

2. **Analyze the Options**:
- **Option A: Anther and Filament**:
- These are parts of a flower. The anther is the male part that produces pollen, while the filament supports the anther. Since they do not contain both male and female organs, this option is incorrect.
- **Option B: Earthworm**:
- Earthworms are known to be hermaphrodites. They have both testes (male reproductive organs) and ovaries (female reproductive organs) within the same individual. Therefore, this option is correct.
- **Option C: Aphrodite**:
- Aphrodite refers to a type of organism that does not have both male and female reproductive organs in the same individual. This option is incorrect.
- **Option D: Trout**:
- Trout are not hermaphrodites; they have distinct male and female individuals. Thus, this option is also incorrect.

3. **Conclusion**:
- After analyzing all the options, the only organism that qualifies as a hermaphrodite is the **Earthworm** (Option B).

### Final Answer:
The correct answer is **Option B: Earthworm**.