Answer:
B. the genetic diversity of the crops will decrease
Explanation:
without the influence of the insects, the crops will have no reason to change
Answer:
12
Explanation:
Suppose the four different strains are P, Q, R, S. Thus, the first infection can be from any of the four strains and it occurs in 4 ways.
Since an individual cannot be infected again with the strain from which he/she is been previously infected;
Then, at the second time;
The possible number of strain to be infected with = 4-1 = 3 ways
Thus; the number of possible different levels of severity can be viewed by forming two lettered word P, Q, R, and S without repetition which is:
= 4 × 3
= 12
Answer:
b
Explanation:
The ends of the lipid are attached to each other
Answer: Yes! there is life in the stratosphere but not the type you think, it's actually microbial life forms that live on it.
