Geologic Time Scale.Scientists decide when an era begins<span> and </span>ends<span>, due </span>to<span> mass extinction. ...</span>Scientists determine<span> when drastic changes </span>are<span> made by the fossil record, which shows earths past organisms that have become extinct.</span>
<span>The answer is B. Human homeostasis alludes to the body's capacity to physiologically control its inward condition to guarantee its soundness in light of variances in the outside condition and the climate. The support of sound circulatory strain is a case of homeostasis.</span>
Answer:Taxi's might get private police channels , and police radios would pick up unnecessary channels
Explanation: not sure if that's what you mean
I believe it’s Australopithecus
Answer:
an aquatic ecosystem is an ecosystem in the body of water examples are marine ecosystem and fresh water ecosystem