Law of Superposition
a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.
Answer:
A. It allows two populations to evolve separately.
Explanation:
Geographic isolation is theorized to have catalyzed the formation of new species. Let’s say groups A and B of a bird species get separated by something, and they can’t cross between to interbreed or exchange alleles.
We describe this as no gene flow, which is the opposite of choices C and D. Because of this, they may diverge if given enough time due to the difference in environmental pressures, because they’re now in different environments.
B is incorrect because it doesn’t apply.
The answer is B.
If you put one plant in wet soil, and one plant in dry soil, you can prove or disprove your hypothesis as the plants grow.
Answer:
I believe the answer is D, if I’m wrong please tell me!
it might be a.
Archea can live in extreme environments; Eubacteria cannot.
and
The gene sequences of their rRNA are very different.
