Answer:
The answer to your question is: Proteins
Explanation:
Ammonia, nitrites and nitrates are part of the Nitrogen cycle where plants absorb nitrogen, when animals eat vegetables, adquiere nitrogen as proteins.
A) nitrates
B) proteins This is the correct answer.
C) nitrites
D) ammonia
The movement of one of the transported substances up its concentration gradient
Presbyopia is age-related farsightedness due to hardening of the lens of the eye that causes the eye to focus light behind rather than on the retina when looking at nearby/close objects.