Answer: A
Evolution is the idea that species change over time, and natural selection is a mechanism by which evolution takes place.
V (volume) = 5l
c (molar concentration or molarity) = 3 M = 1 mol/l
c = n/V, where n is the number of moles or amount of substance
So: n = c * V = 3 mol/l * 5l = 15 moles
Answer:
Populations have variation in traits due to random mutation, crossing over and environmental conditions.
The correct answer is letter A
