The most natural concept of individuality of sponge, based on morphological and physiological aspects is________
A. Ostia and canal system
B. Osculum and canal system
C. Ostia and diploblastic body
D. Osculum and choanocytes
Answer:B
The most natural concept of individuality of sponge, based on morphological and physiological aspects is________
A. Ostia and canal system B. Osculum and canal system C. Ostia and diploblastic body D. Osculum and choanocytes