Answer:
A.) When one species grows or decreases, which destabilizes the ecosystem and then things start to die, Example: Beetles grow in population and eat all the grass, now the grass is gone, the ants now don't have anything to eat, the ants therefore die. Now the anteaters die because they have nothing to eat, therefore the tigers decrease because they don't have anteaters. etc
B.) When there is more speciation there is more diversity and when there is less speciation there is less diversity. If the rate of speciation is higher than the rate of extinction, the number of species present will grow, and conversely, if extinction rate is higher, the number of species present will fall.
C.) When something goes extinct, new organisms are born. An example of adaptive radiation is the development of mammals after the extinction of dinosaurs.
Explanation:
