Q. From the following statements select the wrong one :
A) millepedes have two pairs of appendages in each segment of the body
B) prawn has two pairs of antennae
C) animals belonging to phylum-Porifera are exclusively marine
D) nematocysts are characteristic of the phylum - Cnidaria
Explanation
[Solution from source] NCERT describes sponges as 'generally marine', and freshwater sponges such as Spongilla exist, so 'exclusively marine' is the wrong statement. Millipedes have two pairs of legs on each (diplo)segment, prawns carry antennules plus antennae (two pairs), and nematocysts are unique to cnidarians. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.