Question

please guys help me!!
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Answer 1

Explanation:

Collar and trunk

saccoglossus and balanoglassos are the members

they are found in marine habitat

these animals are also known as acorn worms

notochord is present in proboscis region

Answer 2

Explanation:

The body of hemichordates is divisible into proboscis, collar and trunk.Notochord is present in the Proboscis region only. these animals also known as Acorn worms . they are found in Balanoglossus habitat and herdmania are the members of this Phylum.