C) transposons or jumping genes.
hope this helps you out good luck.!!!!
B is the answer to your question.
I hope this helped!
This one was shown in the documentary, Cosmos, a good example of selective breeding is with wolves into dogs, only breeding the ones that dont bite the feeding hand and what are the nicest. an example of natural selection is brown bears in the artic, thier offspring needs to adapt to the climate and how they survive, polar bears are white because its harder for prey to see them in the snow
I think the answer is photochemical smog.
Hope this helped!
