Q. Which of the following is true about phylum-Platyhelminthes?
A) They are mostly ectoparasites
B) They are mostly free-living
C) They are mostly commensals
D) They are mostly endoparasites
Explanation
Most members of phylum-Platyhelminthes are endoparasites characterised by the presence of hooks and suckers for attachment inside the host
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.