<span>These are explained by (D) punctuated equilibrium. This particular model of evolution is described as a large amount of evolutionary change that occurs in a very short 'punctuated' period of time. Unlike most evolutionary changes, which occur over thousands of years, this model describes evolutionary changes that occur suddenly after a certain event.</span>
I think it is C! hope it helps!
Answer:
See the answer below.
Explanation:
<u>One would expect the pH of a lake with limestone bedrock to be higher than that of other lakes with several years of acid rain.</u>
A lake with a bedrock made of limestone would be alkaline due to the weathering of the bedrock and the alkaline nature of calcium carbonate. Lakes with several years of acid rain would, of course, be acidic.
Generally, pH above 7 is alkaline while the ones below 7 are acidic. <em>Hence, the pH of a lake with limestone bedrock will be higher (above 7) than the pH of other lakes with years of acid rain (below 7). </em>