Segmented worms (annelids), roundworms (nematodes), and flatworms (platyhelminths):
a. make up a monophyletic clade.
b. are all asexual.
c. are all internal parasites.
d. are all bilaterally symmetrical.
e. Only a) and d) are correct.
Ans: d. are all bilaterally symmetrical.
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Fill in the blank(s) with the appropriate word(s)