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Kobotan [32]
3 years ago
6

PLEASE HELP!! I WILL MARK MOST BRAINLIEST ANSWER

Biology
1 answer:
Zanzabum3 years ago
6 0
Answer:
           Most zoologists believe that echinoderms share a common ancestry with hemichordates and chordates because of:
1. The deuterostome characteristics that they share (see figure 1),
2. An anus that develops in the region of the blastopore.
3. A coelom that forms from outpockets of the embryonic gut tract (vertebrate chordates are an exception).
4. And radial, indeterminate cleavage. 

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