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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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2 years ago
Researchers cross a corn plant that is pure-breeding for the dominant traits colored aleurone (C1), full kernel (Sh), and waxy e
olasank [31]

D) #recombinant=116+601+4+2+113+625=1462

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  E) I=1-Q

I-interference

Q-coefficient of coincidence

Q=O2Xo/E2xo(2xo-double crossovers)

O2xo=6

P=(distance from C1 to Sh/100)*(distance from Sh to Wx/100)

=(3.38/100)*(18.28/100)=0.006

E2xo=0.006*6708=40.248

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7 0
2 years ago
During which stage of the cell cycle does the cell rest, grow, and copy DNA and organelles?
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3 years ago
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Ede4ka [16]

Answer:

Reproduction

Explanation:

i just did the question

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