Answer:
C genetic drift
Explanation:
variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
Answer:
Nitrogen is essential for all living things because it is a major part of amino acids, which are the building blocks of proteins and of nucleic acids such as DNA, which transfers genetic information to subsequent generations of organisms.
Explanation:
His WBC (White blood cells) and antibodies would be higher than normal. This is because the rhinovirus, which is a pathogen, has induced the subject’s immune system and is trying to fight the infection. Immune cells such as T- and B- cells, and macrophages would be numerous in number compared to those of an uninfected person.
The easy term to remember would be MRS.GREN
Which is :-
1. Movement
2. Reproduction
3. Sensitivity
4. Growth
5. Respiration
6. Excretion
7. Nutrition
Hope it helps! :>