The answer to this question is B
I believe that the answer you're looking for is Water.
Answer:
Gene flow within a population can increase the genetic variation of the population, whereas gene flow between genetically distant populations can reduce the genetic difference between the populations.
Explanation:
Mitosis is when a DNA error, aka mutation, occurs in a body cell. When cells divide, it needs a copy of the DNA. During DNA replication, that error can cause the instructions for building proteins to differ. The change can not affect offspring. Meiosis is the same situation, but in sex cells. This can be transferred to offspring.
Answer: How scientists define and measure population size, density, and distribution in ... In ecology, a population consists of all the organisms of a particular species ... some methods ecologists use to determine these values for populations in ... In the end, the data can be used to estimate the population size and population density
