AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When a farmer breeds only his or her best livestock, the process involved is
A
natural selection
B
artificial selection
C
artificial variation
D
survival of the fittest
Explanation: 

Detailed explanation-1: -Farmers and breeders allowed only the plants and animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce.

Detailed explanation-2: -Selective breeding is also known as artificial selection. Artificial selection is driven by human intervention.

Detailed explanation-3: -Some plants may have grown larger than others, or maybe some kernels tasted better or were easier to grind. The farmers saved kernels from plants with desirable characteristics and planted them for the next season’s harvest. This process is known as selective breeding or artificial selection.

Detailed explanation-4: -A common example of artificial selection in animals is dog breeding. As with racehorses, particular traits are desirable in different breeds of dogs that compete in dog shows. The judges look at coat coloring and patterns, behavior, and even teeth.

Detailed explanation-5: -Artificial selection is an evolutionary process in which humans consciously select for or against particular features in organisms – for example, by choosing which individuals to save seeds from or breed from one generation to the next.

There is 1 question to complete.