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Lera25 [3.4K]
3 years ago
5

The ring canal, stone canal, radial canals, and madreporite are all parts of the

Biology
2 answers:
Basile [38]3 years ago
4 0
It would be B. Water vascular
ira [324]3 years ago
3 0
B. water vascular :)
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Hey there!


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DNA and RNA are both nucleic acids. Aside the structural difference of DNA being double stranded and RNA being single stranded, in DNA, the nucleotide bases adenine (A) is paired with thymine (T); while cytosine (C) is paired with guanine (G); howerver in RNA, thymine is replaced with uracil.; thus in RNA, the base pairs are - A:U and G:C

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