Question

What is proboscis collar and trunk in hemichordates?? Mention some few examples of hemichordata phylum??

Answer 1

they are parts of body
e.g. balanoglossus and saccoglossus

Answer 2

Proboscis, collar and trunk are the parts of the body of the members of hemichordates particularly.....
Eg . Of hemichordates are balanoglossus (acorn worm /tongue worm)
And saccoglossus...
Refer to the following diagram you will understand it more properly...
Hope it helps you..!!