Directions: Select each correct answer. More than one answer may be correct.
Which of the following statements describes an example of natural selection?

Question

Directions: Select each correct answer. More than one answer may be correct.
Which of the following statements describes an example of natural selection?

anonymous · Answer

A.  A species of corn is genetically modified to produce a natural insecticide, resulting in an increased harvest.
B.   An aloe vera plant possessing a trait for extra thick leaves survives a long drought in a desert, while an aloe vera plant that has thinner leaves does not.
C.   Owls sleep during the day, while many other animals sleep during the night.
D.   A farmer breeds a certain cow that produces large quantities of milk in order to produce more cows with the same trait.