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solniwko [45]
3 years ago
15

*WILL MARK BRAINLIEST* Can someone PLEASE help me with this??

Biology
1 answer:
mixer [17]3 years ago
3 0

One is cells I think

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Which part is a fluid cavity of the earthworm that gives it a hydrostatic skeleton?
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Answer: Option B) Coelom

Explanation:

Hydrostatic skeleton is the type of skeleton possessed by soft-bodied animals such as earthworms and sea anemones. Fluid is secreted to fill the cavity spaces (coelom) in their body. The fluid then presses against the muscular body wall, causing the muscles to contract exerting pressure against the fluid thereby causing motion

Thus, coelom is the fluid cavity of the earthworm that gives it a hydrostatic skeleton

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All arteries except pulmonary artery carry pure blood. Why?
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lumen means Empty space within an object(solid)

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