Haemoglobin is not found in

Options

A. duck
B. lizzard
C. earthworm
D. mosquito and cockroach

Answer

**Step-by-Step Solution:**

1. **Understanding Hemoglobin**: Hemoglobin is a red blood pigment responsible for transporting oxygen in the blood. It is primarily found in red blood cells (RBCs) of various organisms.

2. **Analyzing the Options**:
- **Option A: Duck**: Ducks are birds, and like most birds, they possess hemoglobin in their red blood cells. Therefore, hemoglobin is present in ducks.

- **Option B: Lizard**: Lizards are reptiles, and they also have hemoglobin in their blood. Thus, hemoglobin is present in lizards as well.

- **Option C: Earthworm**: Earthworms are annelids and have a closed circulatory system. They contain hemoglobin in their blood, which gives it a red color. Therefore, hemoglobin is present in earthworms too.

- **Option D: Mosquito and Cockroach**: Both mosquitoes and cockroaches are arthropods. Their blood is typically colorless or white due to the absence of hemoglobin. Instead, they have hemolymph, which does not carry oxygen in the same way as hemoglobin does.

3. **Conclusion**: After analyzing all the options, it is clear that hemoglobin is not found in mosquitoes and cockroaches. Therefore, the correct answer is **Option D**.

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