Arteries carry blood______the heart.
YOUR ANSWER==> AWAY FROM
species have genetic
One of the major elements of natural selection is that all species have genetic variation.
There must be some evolutionary means by which existing DNA sequences are changed and new sequences are incorporated into the gene pools of species called genetic variation.
Natural selection is a process when organisms adapt better to their environment. It is an essential key in evolution. There is a change in phenotype of a population over time.
Learn more about genetic variation here:
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b. oxygen.
c. exercise.
d. light.
Answer:
b, oxygen!
Explanation:
i like to think of it like this:
1. oxygen = air (i know that air is not made up of just oxygen, this is just how i like to think of it)
2. air sounds like aer!
3. oxygen = aerobic
b. Cretaceous
c.Triassic
d. Jurassic
B. The mutations could be treated by chemotherapy.
C. It occurs in somatic cells and thus are not usually transmitted to descendants.
Answer: Obviously the anwser is C. It occurs in somatic cells and thus are not usually transmitted to descendants. Hope this Helps :D
Some stereotypes that come to mind when people think of lions is that they are dangerous and aggressive to observe or be around. Contrary to popular belief, lions are very docile and respective creatures.