In _______________ the selecting agent is the environment, whereas in _______________ the selecting agent is humans. (a) natural selection; convergent evolution (b) mutation; artificial selection (c) homoplasy; homology (d) artificial selection; natural selection (e) natural selection; artificial selection

What is the difference between evolution, natural selection, and artificial selection? A. Evolution is a genetic change in a population over time which can occur through natural selection. Artificial selection is the differential reproduction of individuals in a population to promote the characteristics chosen by the breeder.   B. Natural selection is the change of allele frequencies in a population over time.  Evolution leads to differential survival and reproduction of individuals. Artificial selection has produced domesticated animals and plants.   C. Evolution is a mechanism of artificial selection.  Natural selection is a form of artificial selection in which nature selects the characteristics that are most beneficial to a species.   D. Artificial selection is a mechanism of evolution and is the main process of domesticating animals and plants for human use.  Natural selection is the same as evolution.

Please answer the question below; specifically "what are the four observations that inexorably led to the conclusion that species evolve by natural selection?" Thank you so much.

Is natural selection only a negative process that removes nonadapted and lesser adapted forms? Explain your answer.