Answer:
The correct answer would be 30 million years.
The molecular clock is a technique used to determine the time when the two species diverged from a common ancestor. It uses the mutation rate to determine the same.
Mutation rate is the rate at which a number of mutations take place in a given unit time.
For example, the mutation rate in a given question is one mutation per 10 million years, that is, one nucleotide is mutated in 10 million years.
If we compare the DNA sequence of the given two species, we would find that three mutations have taken place.
Species A: CTTAAGCTAGTAAGGACC
Species B: CATAAGTTAGTAAGGTCC
Thus, 30 million years would have passed to evolve three mutations.
Hence, they must have shared a common ancestor around 30 million years ago.
Answer:
Explanation:
It will increase because we as humans all have a carbon footprint and with more and more people populating the earth and nothing is done, more carbon will be made on the atmosphere and eventually global warming will heat the earth up so much that we won't be able to live on it anymore and all the ice will be melted away.
Also carbon footprints are from gas, using cars, planes, factories,etc.. anything that pollutes the air pretty much.
Saturated Zone
<em>[ Completely full of water ]</em>
Unsaturated Zone
<em>[ The pore spaces are not completely full of water ]</em>