Question

Hemichordates are closely related to

• A. Chordates
• B. Molluscs
• C. Plants
• D. None of the above

Answer 1

The correct option is A Chordates

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: Enteropneusta (acorn worms), and Pterobranchia.
The hemichordates are the closest extant phylogenetic relatives of chordates among the invertebrates. Thus, these marine worms, described to be the sister group of the echinoderms (such as sea urchins), are of great interest for the study of the origins of chordate development.

So, the correct answer is option A.