Question

PLLLLLZ HELP A rapid appearance of many new species of organism’s usually________.

happens just before an extinction event

leads to an increase in glaciation

is directly related to a drop in sea level

happens after a mass extinction

Answer 1

happens after a mass extinction

Step-by-step explanation:

When a mass extinction occurs, a large number of living beings are decimated. This results in a large number of biological niches that are left without inhabitants, empty, or practically empty. Some living things manage to survive a situation of mass extinction. These beings occupy the niches used by those who died and are able to reproduce at a higher speed, since competition is less. These living beings are then able to reproduce a populous offspring that causes the appearance of many new species of organisms. This is because the organisms that survived the mass extinction have a characteristic favorable to their existence that will be passed on to their descendants.

Answer 2

The correct option is D) happens after a mass extinction

Step-by-step explanation:

A mass extinction can be described as an increase in the extinction of a certain kind of species from the world leaving only a few of the species behind with low genetic diversity.

After the mass extinction of a species, there is enough room for new species to inhabit the land. Hence, whenever a mass extinction occurs, it usually is accompanied by the rapid appearance of many new species which begin to colonize the land.