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Masteriza [31]
3 years ago
9

Explain what is unique about the marine worms' digestive and circulatory systems?

Biology
1 answer:
miss Akunina [59]3 years ago
3 0

Answer:

These worms have a mouth on their lower, or ventral, surface through which they take in food as they move along rocks and other sub- strates. ... Food enters the mouth and is digested in the intestine; the nutrients diffuse throughout the body (there are no circulatory or respiratory sys- tems).

Explanation:

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