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.
<span>Fish have adaptable behaviors and structures so that they can
survive in the wild. These adaptations however differ with regards to context
and environment. Some fishes for example are called stonefish because they can
camouflage in environments that are composed variedly with pebbles and rocks,
and this helps them to avoid predators and thrive. Nevertheless, when these
group of organisms are strayed and become exposed to a new environment they can
be exposed and be vulnerable to predators. </span>
The Americans resorted to energy and gas-saving measures to
cope with the embargo and the high price of oil. The competition posed by non-OPEC members
also contributed to the drop in oil prices and this affected the Arab economy
who also took up austerity approaches to address the matter. The prices of oil later stabilized in the
1980s.
The decrease of biodiversity, messing up the ecosystem in regards to the food web and chain etc.
I’m pretty sure it’s A because autotrophs use sunlight to make their own food, so they’d need to be near the surface of the lake to get maximum sunlight.