Black-bellied seedcrackers have either small beaks (better for eating soft seeds) or large beaks (better for hard seeds). There are no seeds of intermediate hardness; therefore, which kind of selection acts on beak size seedcrackers?

EVOLUTION

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

A	disruptive
B	stabilizing
C	directional
D	None of the above

Explanation:

Detailed explanation-1: -Disruptive Black rabbits (BB) and white rabbits (bb) are both able to survive because they can camouflage into the white and black rocks in their environment. However, the intermediate gray rabbits (Bb) do not survive. This results in only white and black rabbits.

Detailed explanation-2: -Why did dark-colored rock pocket mice first appear in a population of light-colored rock pocket mice? They have a genetic mutation that affects their fur color. There is dark lava rock in the area where they live. Individuals change color to blend in with the environment.

Detailed explanation-3: -Small populations tend to lose genetic diversity more quickly than large populations due to stochastic sampling error (i.e., genetic drift). This is because some versions of a gene can be lost due to random chance, and this is more likely to occur when populations are small.

There is 1 question to complete.

LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION