 
<translate> Nsogbu a na-apụta ma ọ bụrụ na ọnụ ọgụgụ ndị bi n'otu obodo belata ngwa ngwa. Ọnụ ọgụgụ ndị bi na ya bụ ọnụ ọgụgụ mmadụ. Ihe na-akpata nsogbu a bụ mgbe ọnụ ọgụgụ ndị mmadụ na-ebelata n'otu ntabi anya. Azịza ya bụ: (G). <eng> Bottleneck effect occurs when a population suddenly gets much smaller. Population is the number of people. Bottleneck effect occurs when the number of people suddenly gets much smaller.
The answer: (G). 