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If a live earthworm is pricked with a ne...

If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is

A

excretory fluid

B

coelomic fluid

C

haemolymph

D

slimy mucus

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, "If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is," we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Anatomy of the Earthworm**: - The earthworm has several layers, including the outer cuticle, epidermis, and a coelom (body cavity) that contains fluid. 2. **Identify the Layers Affected by the Prick**: - When a needle pricks the outer surface, it penetrates through the cuticle and epidermis, reaching the coelom but not the gut. 3. **Determine the Fluid in the Coelom**: - The fluid present in the coelom is known as coelomic fluid. This fluid is essential for the earthworm's internal processes and is distinct from blood or other bodily fluids. 4. **Evaluate the Options Provided**: - **Excretory fluid**: This is incorrect as it pertains to waste removal and is not what would ooze out from a prick. - **Coelomic fluid**: This is the correct answer since it is the fluid contained within the coelom. - **Hemolymph**: This is part of the vascular system and would not be released unless the vascular system was damaged, which it is not in this case. - **Slimy mucus**: This is a secretion on the surface of the earthworm and would not come out from a prick. 5. **Conclude the Correct Answer**: - The fluid that would come out when the earthworm is pricked is the **coelomic fluid**. ### Final Answer: The fluid that comes out is **coelomic fluid**. ---
To solve the question, "If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is," we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Anatomy of the Earthworm**: - The earthworm has several layers, including the outer cuticle, epidermis, and a coelom (body cavity) that contains fluid. 2. **Identify the Layers Affected by the Prick**: ...
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