In - nematodes nutrients are carried to all aprts of the body through

Options

A. circulatory system
B. renette glands
C. body will
D. pseudocoelomic fluid

Answer

**Step-by-Step Solution:**

1. **Understanding Nematodes**: Nematodes, also known as roundworms, belong to the phylum Nematoda. They are one of the most abundant groups of animals on Earth and can be found in various environments, including as parasites in plants and animals or as free-living organisms in soil and freshwater.

2. **Identifying Nutrient Transport Mechanism**: The question asks how nutrients are transported throughout the body of nematodes. In many animals, a circulatory system is responsible for this function, but nematodes are unique.

3. **Evaluating the Options**:
- **Option A: Circulatory System**: Nematodes do not possess a traditional circulatory system with blood vessels or lungs. Therefore, this option is incorrect.
- **Option B: Renette Cells**: While renette cells play a role in excretion in some marine nematodes, they are not primarily responsible for nutrient transport. Thus, this option is also incorrect.
- **Option C: Body Cavity**: The body cavity in nematodes is not the main mechanism for nutrient transport, making this option incorrect as well.
- **Option D: Pseudocoelomic Fluid**: Nematodes have a fluid-filled body cavity called the pseudocoelom. This fluid bathes the internal organs and facilitates the transport of nutrients throughout the body. Hence, this option is correct.

4. **Conclusion**: The correct answer to the question is that nutrients in nematodes are carried to all parts of the body through the pseudocoelomic fluid.

**Final Answer**: Nutrients are carried to all parts of the body in nematodes through the pseudocoelomic fluid.

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