Explain about hemichordata...​

The term Hemichordata—from the Greek hemi, meaning “half,” and chorde, meaning “string,” thus, “half-chordate”—was first proposed because the buccal diverticulum, a tubular outgrowth from the mouth cavity forward into the proboscis, or “snout,” resembled a rudimentary notochord—the dorsal, o

Explanation:

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hemichordata is a phylum of marine deuterostome animals generally considered the sister group of the echinoderms. they appear in the lower or middle cambrian and include two main classes enteropuenesta (acorn worms) and pterobranchia acorn worms are solitary worms-shaped organisms

the answer is a) cell division.

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