I hope you get your answer soon! :)
Species that have a greater gene pool are scientifically proven to survive better than those that have a smaller gene pool. This is because the species has diversity in the genes allowing them to be able to adapt to different situations. The smaller gene pool has less diversity meaning that it cannot adapt as easily. So, the answer is most likely D. Species A will most likely go extinct and species B will continue to thrive.
A control group of the experiment is the one in which no treatment or intervention is given. So, in your case, the pea plants in which was not subjected any of the fertilizers, will serve as a control group. This is a negative control. A positive control group is the one in which an established treatment is given, which definitely leads to the production of the desired character. So, in your case, a very good well-known fertilizer which has a positive control on the growth of the pea plant, would serve as a positive control.
When air is inhaled, oxygen diffuses from the alveoli into the blood to be used for respiration by the body’s cells. Carbon dioxide is a waste product made by the body’s cells during respiration.
60 chromosomes, and 29 pair of autosomes.