Question on: JAMB Biology - 2016
The importance of the mouth-brooding behaviour in Tilapia is that it
A
helps in keeping the young fish warm
B
affords protection from predation for the young fish
C
helps the fish to live in a social group
D
provides regurgitated nourishment to the young fish
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Correct Option: B
The mouth-brooding behavior in Tilapia is primarily a protective strategy. Here's why:
* **Protection from Predation:** The adult Tilapia carries the eggs or young fry in its mouth, shielding them from potential predators. This significantly increases the survival rate of the offspring.
* **Other options:**
* Keeping the young fish warm: While the mouth might provide some temperature regulation, it's not the primary function.
* Living in a social group: Mouth-brooding is more about individual parental care, not necessarily fostering social behavior in the young.
* Providing regurgitated nourishment: While some fish may provide parental feeding, this is not the primary function of mouth-brooding in Tilapia.
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