The number of copies of a specific version of a gene divided by the number of copies of all versions of that gene. This number can be used to show the amount of biological diversity in an individual, a population, or a species. a: chromosome
b:genetic drift
c:allele frequency
d:gametes

Many body systems work together for proper functioning of the body and to maintain internal homeostasis. the works to break down food eaten before exercising. the takes in the nutrients obtained from the food. the body sweats as a mechanism to cool off, because the is working to flush out toxins.