In Canada, the people have overfished the salmon in a particular river. They catch the larger salmon and throw the smaller salmon back into the river. Over time, what type of selection is likely to take place?

TYPES OF SELECTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	directional selection
B	disruptive selection
C	stabilizing selection
D	artificial selection

Explanation:

Detailed explanation-1: -Birth weight is a classic example of a trait under strong stabilizing selection, where high and low birth weights are correlated with reduced survival in both males and females (22).

Detailed explanation-2: -Which of the following effects did this change in fishing techniques most likely have on the salmon population over the next 20 years? The average body size of the salmon population increased significantly.

Detailed explanation-3: -Evolution is defined as the change in the inherited traits of a population of organisms through successive generations. When living organisms reproduce, they pass on to their progeny a collection of traits.

Detailed explanation-4: -A classic example of natural selection at work is the origin of giraffes’ long necks. The ancestors of modern giraffes were animals similar to deer or antelope, with necks of ordinary length.

There is 1 question to complete.

AP BIOLOGY

EVOLUTION

TYPES OF SELECTION