4. choose the best explanation of the difference between evolution
and natural selection.
o a. evolution is the idea that species change over time, and natural
selection is the idea that nature changes over time.
b. evolution is the idea that species change over time, and natural
selection is a mechanism by which evolution takes place.
o c. natural selection is the idea that species change over time, and
evolution is the idea that our world changes over time.
od. natural selection is the idea that species change over time, and
evolution is the idea that the species' food source also changes over
time.