Gradualism is a pattern of evolution in which
A. a single species evolves into several closely related species.
B. several distantly related species develop similarities.
C. a species evolves at a slow, steady pace.
D. a species has periods of little evolution interrupted by periods of rapid evolution.
 
Mass extinction would most likely result from which of the following events?
A. A disease kills off a single species of predator within an ecosystem.
B. A wildfire burns a national park.
C. Global temperatures drop several degrees after several massive volcanic eruptions.
D. A massive earthquake strikes North America.

Verified Answer :

1.
C. a species evolves at
a slow, steady pace. 



Gradualism,
is the process by which a certain specie or creature undergo changes and
variations in a limited and solely focusedly confined in long period of time.



2.
A. A disease kills off a
single species of predator within an ecosystem.



Mass extinction is a massive and global elimination in a
certain specie or species. It doesn’t involve itself only in a secured and measurable
area but it impacts the whole large-scale of population as a whole.