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What can happen to our virtual finch population if the weather changes

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What can happen to our virtual finch population if the weather changes

What happened to beak depths in the virtual finch population when selection on beak depth was eliminated (selection strength = 0) and mutation rate for alleles determining beak depth was greater than zero?
a)Average beak depth consistently increased.
b)Average beak depth consistently decreased.
c)The range in beak depths (largest to smallest) became larger.
d)The range in beak depths became smaller.

What can happen to our virtual finch population if the weather changes between wet and dry conditions too rapidly?
a)The mutation rate may fall to zero.
b)The distribution of beak sizes may cease to be bimodal.
c)The finch population may go extinct.
d)Beak size may cease to affect survival.

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