Answer;
-Gene flow
Explanation;
Microevolution is the changes within a gene pool occurring from generation to generation. Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation.
Gene flow refers to changes in allele frequency that result from migration of individuals between populations. Gene flow has the effect of minimizing the genetic differences between populations.
Both are sources of Cellular energy
Cells come from pre-existing cells.
The answer is d / watwe molecules connect through hydrogen bonds
