Question

Hemichordata was earlier placed under
phylum chordata, but now it is
grouped under non-chordatan list
any
three features that support the
change in grouping​

Answer 1

Because :

(i)hemichordates have a rudimentary structure similar to notochord.

(ii) this phylum consists of a small group of worm like marine organisms.

(iii) the body is cylindrical and is composed of an anterior proboscis, a collar and a trunk.

(iv) proboscis gland as the excretory organ.