Answer:
A
Explanation: Ex: heavy fur coat great in Alaska, bad in Florida
Not B: organizms can learn behaviors but adaptation is biological.
Not C. Answer is not for basic biology.
Not D: Competition varies under factors such as environment.
I would say D because it involves more selection but if that one is wrong it is most likely B. But I would go with D
The ileo-cecal (I-C) valve or sphincter controls the passage of digestive material from the Ileum (small intestine) into the cecum (large intestine).
<span>The difference is where the material came from. Spoils come from overburden and is discarded as waste, whereas, tailings come from left over dredging of steam beds that are discarded as waste as well. </span>
