Pupa occurs in the life cycle of

Options

A. Cockroach
B. Housefly
C. Honey Bee
D. Earthworm.

Answer

To answer the question "Pupa occurs in the life cycle of," we need to analyze the options given: cockroach, housefly, honey bee, and earthworm.

### Step-by-Step Solution:

1. **Understanding Metamorphosis**:
- Metamorphosis refers to the developmental process that certain insects undergo, which can be classified into two types: complete metamorphosis (holometabolism) and incomplete metamorphosis (hemimetabolism).
- Complete metamorphosis includes four distinct life stages: egg, larva, pupa, and adult.

2. **Identifying the Life Cycle Stages**:
- **Housefly**: The housefly undergoes complete metamorphosis. Its life cycle includes the egg stage, larval stage (maggot), pupal stage (pupa), and finally the adult fly.
- **Cockroach**: The cockroach undergoes incomplete metamorphosis, which consists of three stages: egg, nymph, and adult. There is no pupal stage.
- **Honey Bee**: Honey bees also undergo complete metamorphosis, but they do not have a distinct pupal stage; rather, they develop directly from larva to adult.
- **Earthworm**: Earthworms do not undergo metamorphosis. They develop directly without any distinct life stages.

3. **Conclusion**:
- Among the options provided, the only insect that has a pupal stage in its life cycle is the housefly. Therefore, the correct answer is **housefly**.

### Final Answer:
Pupa occurs in the life cycle of **housefly**.