The options are:
I) adaptive radiation
II) ecological opportunity
III) lack of competition
IV) morphological innovation
A) just one of the above
B) two of the above
C) three of the above
D) all of the above
Answer:
The correct answer is C) three of the above
Step-by-step explanation:
The largest mass extinction was occurred during the end of the Permian period. Volcanic eruptions are considered the cause of this mass extinction which killed nearly 70 percent of all land species and 96% of ocean species.
Adaptive radiation is the process in which species evolve very fast due to change in the environment and environment condition in which they lived earlier. Competition also decreased after the Permian period because most animals and plants got extinct which produced ecological opportunities for existing species to evolve.
So after the Permian period adaptive radiation, lack of competition and ecological opportunities allowed rapid speciation in the plant and animal species which survived this mass extinction.