Earth has undergone some catastrophic changes from time to time. which of these most likely explains why life on earth continued following these catastrophes?
a. a wide diversity of species existed.
b. dominant species had a slow mutation rate.
c. many species filled the same niche.
d. a strong species had many different characteristics.

The most probable and the most likely answer to this problem together with the options presented would be A. a wide diversity of species existed.

Diversification is one of the many ways that you could enhance your chances in probability. When there is a diversity, chances are high that even if everything is gone, there is still some left. The famous analogy for this would be choosing among the three baskets as to where you put your eggs. Diversity is practiced when you put at least an egg on each basket. This is what happened with our species and the catastrophes that happened on Earth.

Except hold on to his or her beliefs even if there is no evidence for those beliefs.