Your answer is A ; weathering and erosion
Explanation:
On the surface weathering and erosion break down igneous rocks into pebbles,sand and mud ,creating sediments which accumulates in basins on the Earth's surface
Depending on what trait the alleles carry, the brothers will have a different phenotype and a different genotype.
For example; Eye color. My sister is heterozygous, meaning she has brown eyes. I am homozygous recessive, meaning I have blue(green/hazel) eyes. We both have the same parents, I just happened to inherit both of the recessive eye color alleles from my parents whereas, my sister inherited both the dominant and recessive alleles.
So, since the brothers inherited different sets of alleles, their genotype for a certain trait will be different.
During 66 mya in the Paleocene scientists believe the first primates may have evolved.
<h3>
Evolution of Primates</h3>
- Most likely, a small, nocturnal, insectivorous animal that gave rise to the first primates. The closest extant cousins of primates are tree shrews and colugos, also referred to as flying lemurs.
- The tree shrew is cited as a living example of what the ancestors of primates, or the earliest primates, would have looked like.
- The most ancient ape discovered by reliable fossil evidence is Dryomomys. Only isolated teeth and jaw fragments from Purgatorius, the earliest known primate, which dates back 65 million years, are known.
- In the primate suborder Strepsirhini, the Eocene primates split into two groups at an early stage: the omomyids and the adapids, collectively known as the prosimians.
To learn more about the Evolution of Primates refer to:
brainly.com/question/13716896
#SPJ1
The answer is definitely RNA
To raise an arm upward the muscle on one side of it contracts. It relaxes the muscle on the opposite side of the arm.