Answer:
<em>The correct option is A) increase in atmospheric O2</em>
Explanation:
The nerve cells and the muscle cells suggest that the the presence of oxygen in the atmosphere was an adaptive radiation which brought the existence of different animals. The conditions became favorable for different animals to survive on Earth only when the availability of oxygen improved in the atmosphere. As animal cells like the muscle cells require a constant supply of oxygen, we can hence say that increase in atmospheric oxygen was the adaptive radiation for supporting many group of animals.
Answer:
The correct answer is E. all of the above
Explanation:
Hairs of different mammals are modified to perform different functions like many mammals use hair to camouflage from predators, for example, snowshoe hare has white hair when winter comes which helps them to camouflage in the snow to protect itself from predators.
Hair can be modified to play a role in defense like in case of porcupine hair are converted in sharp quills, hairs can also perform the sensory function like sensory whiskers in mammals.
Long hairs are present in mammals that live in cold climates like polar regions which helps in trapping the heat of the body so they provide insulation to them. So the right answer is E.
The answer is C. Continental Tropical, Hope this helped!
<em>The process results in </em>four daughter cells that are haploid, <em>which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells. </em>
Thylakoids is the answer so Letter A.
