EVOLUTION
PATTERNS OF EVOLUTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
There was less living species and land started forming into continents we have today
|
|
|
Many species still survived and much less contintents formed
|
Detailed explanation-1: -As lineages invade different niches and become isolated from one another, they split, regenerating some of the diversity that was wiped out by the mass extinction. The upshot of all these processes is that mass extinctions tend to be followed by periods of rapid diversification and adaptive radiation.
Detailed explanation-2: -The Cretaceous mass extinction event occurred 66 million years ago, killing 78% of all species, including the remaining non-avian dinosaurs. This was most likely caused by an asteroid hitting the Earth in what is now Mexico, potentially compounded by ongoing flood volcanism in what is now India.
Detailed explanation-3: -By removing so many species from their ecosystems in a short period of time, mass extinctions reduce competition for resources and leave behind many vacant niches, which surviving lineages can evolve into.
Detailed explanation-4: -This is the famous extinction event that brought the age of the dinosaurs to an end. In each of these cases, the mass extinction created niches or openings in the Earth’s ecosystems. Those niches allowed for new groups of organisms to thrive and diversify, which produced a range of new species.