Natural selection doesn't favor traits that are somehow inherently superior. Instead, it favors traits that are beneficial (that is, help an organism survive and reproduce more effectively than its peers) in a specific environment. Traits that are helpful in one environment might actually be harmful in another.
(one again, I hope this helps ^^)
B. It was an explanation for how the earth originated.
Answer:
True
They all are pruning methods because they are all for pruning grape vines
internal and external factors regulate the cells health.