The answer to this would be reactants.
Answer: A total variation of species in a given ecosystem.- Diversity is the answer
Explanation: Something that is able to be passed from a parent to a child- Answer Heredity
The anser is C. recessive located on the X chromosome.
Over time, those who cannot live through the temperature differences/have undesirable qualities will die off. Overtime, those with desirable qualities are left and they will continue the population.