anonymous
  • anonymous
A population of hummingbirds is composed of individuals with short or long beaks, which they use to reach nectar inside flowers. A flowering trumpet vine that produces many deep, bell-shaped flowers is introduced to the region, resulting in fewer short-beaked and more long-beaked hummingbirds. Which of the following conditions most likely caused this shift in the hummingbird population?
Biology
chestercat
  • chestercat
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anonymous
  • anonymous
a. Hummingbird predators avoided areas where the trumpet vine grew. b. Hummingbirds starved because the trumpet vine limited the food supply. c. Hummingbirds that compete for nectar were more successful with long beaks. d. Hummingbirds with short beaks overproduced offspring with longer beaks.
anonymous
  • anonymous
c
anonymous
  • anonymous
do you have idea of natural selection?

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anonymous
  • anonymous
no not really
anonymous
  • anonymous
survival of the fittest,
anonymous
  • anonymous
so see in that prospective.
anonymous
  • anonymous
ok
anonymous
  • anonymous
so b?
anonymous
  • anonymous
am i right?
anonymous
  • anonymous
natural selection is about competition between organisms which share common niche
anonymous
  • anonymous
d?
anonymous
  • anonymous
it is C.
anonymous
  • anonymous
really is that right?
anonymous
  • anonymous
ya c it is
anonymous
  • anonymous
oh ok thanks guys!
anonymous
  • anonymous
do u get it how? that is what is more important.
anonymous
  • anonymous
yea, from the beginning i thought so, but I thought it was wrong...

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