Q: Which of the following phenomena might have influenced the evolution of organisms?
a) Continental drift
b) Glacial cycles
The Correct Answer is Both1 and 2.
Continental drift theory
This theory was propounded b Alfred Wegner.
This theory deals with the distribution of the oceans and the continents.
According to this theory, all the continents formed a single continental mass- Pangea and mega ocean- Panthalassa surrounded it.
Pangaea started splitting and broke down into two large continental masses as Laurasia and Gondwanaland forming the northern and southern components respectively.
The Continental drift must have moved some animals from one continent to others and few getting stuck in the same place, which must have influenced the evolution.
Glacial cycles
It would have affected evolution as many might not able to tolerate extreme cold and would have extincted.
The rise in sea level due to glacial melt also might have affected the evolution of organisms.
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