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123daisy 123daisy
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7 years ago
 For each statement, the distribution of a population is illustrated before a selective force causes the population to evolve.

i. Indicate where on the graph the selection takes place (it could be one place or two) by placing an “x” (or two if necessary).
ii. Draw the new population distribution on the graph.
iii. Indicate the type of selection taking place.

a) Flamingos get their color by eating a certain type of crustacean. Some flamingos aren’t very good at finding this type of crustacean and are white, and some carry adaptations that make finding crustaceans easy and they are red. Male pink color (and only pink color) is deemed sexy by females, and birds that find an intermediate amount of crustacean leave more offspring than those that find too much or those that do not find any.




Selection type: __________

b) Some Vampire bats form colonies near beef cow ranches. Those with sharper teeth can pierce the tough hides of beefy cows better than those with dull teeth. As a result they get more blood, and leave more baby bats just like them.



Selection type: __________


c) Insectivorous birds are more likely to eat medium sized insects because the exoskeleton of large insects is too hard to break, and small insects are too hard to find.



Selection type: __________



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