Answer:
true!!
Explanation:
A frameshift is when the frames of the three nucleotides shift and an insertion or deletion will do that
Species A’s population will decrease due to limited space. <em>(I think. I'm sorry if I'm wrong.)</em>
Answer:
Magnetic reversal proves seafloor spreading because we can see the polarity of the Earth's magnetic field in rocks. As magma cools, particles in it get “frozen” in the direction of the magnetic field. ... The magnetic evidence shows that the oldest rocks are far away from the ridge and the newest rocks are closest.
The answer is C. lack of competition.
hope that helps
The variations might help the organism to survive if there is a change in its environment
Eg heat resistant bacteria
The variation might help the organism survive predators
Eg. Green beetles blend with green leaves thus disabling crows to spot them
:)