A reason could be the bodies ability to process the water based vitamin as well as the person's diet. many things have b12 in it but choosing to cut something out, like meat, could cause a deficiency
Answer:
individual organisms of the same species living in the same geographic location at the same time makes up a population.
Explanation:
The frequency of RR is found by squaring the frequency of R. The answer is about .72 or 72 %