In heat fixing what would happen if too much heat were applied

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?