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Biology II (23b-24b)

Natural Selection Concept Questions

QuestionAnswer
A volcano recently erupted. Over a few generations, Mice were found to be producing offspring that helps them camouflage to the black volcanic ashes and debree left over. This is an example of: Directional selection
A pop of birds range in variation of beak size based off of seed size. Medium seeds go extinct, leaving them to produce with large beaked birds and small beaked birds. This is an example of: Disruptive selection
Babies of low weight lose heat more quickly and get ill from infectious disease more easily, whereas babies of large body weight are more difficult to deliver through the pelvis. Infants of a more medium weight survive much more often. Its an example of: Stabilizing selection
Two male girafs are walking around and come upon a tree. The trees in africa have grown unusually tall recently. The giraff with the longer neck is the only one able to eat the leaves on the tree. Females producing w/ this giraff vs the other is an ex of: Intersexual selection
Smaller males w/ small antlers are much less likely to win n a fight. Instead they wait near a female deer n when the large male intending to copulate with her engages in a contest with a compet, the smaller deer sneaks n and copulates w the female. Intra-sexual selection
Squirrels on different sides of the grand canyon end of as different species due to allopatric speciation
Polyploidy is an example of sympatric speciation
habitat differentiation is an example of sympatric speciation
sexual selection is an example of sympatric speciation
Created by: dzelaya
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