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dedylja [7]
3 years ago
11

What process does the urchin perform to obtain its energy​

Biology
1 answer:
leonid [27]3 years ago
6 0

Answer:

The Purple Sea Urchin obtains oxygen through diffusion only the diffusion of oxygen into the organism. Also, oxygen diffuses from the canals into the rest of the body and carbon dioxide diffuses back into the canals to be released.

Explanation:

:)

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The central nervous system consists of the brain and the ________.
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Answer:The answer is spinal cord

Explanation:

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