Which of the following is not true about protostomes?

Question

A. they are types of advanced invertebrates

B. they form a true coelom 

C. the first opening during embryonic development becomes the anus

D. they will become mollusks, annelids, and arthropods

E. they are more advanced than acoelomates, but no as advanced as deuterostomes

Answer 1

The answer is A, they are not advanced invertebrates such as octopi or squid.

 

for a clear description of the developmental process, please see

 

http://www.mun.ca/biology/scarr/Protostomes_vs_Deuterostomes.html