alleryIn sponges, the pores through which water enters the body are called:
AOstia
BOscula
CSpicules
DTentacles
Answer & Solution
Correct answer: A. Ostia
1. Sponges take in water carrying food through small pores.
2. These intake pores are the ostia.
3. Rule out oscula: water is given out, not taken in, through those.
4. Spicules are skeletal supports, not water pores.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 6 "Animal Classification", p.76_
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