<span>The correct answer to this question is to
find an alternative energy source when glucose is absent or not present in <span>sufficient
amounts. Lac operon helps in the breaking down of lactose to be converted as
food source and also in the breaking down of molecules in releasing energy. </span></span>
Hollow, that's why birds can fly. There is nothing in the bone to weigh them down.
Answer:
Evolution, of course is the process of change in all forms of life over generations and evolutionary biology is the study of how evolution occurs. Biological populations evolve through the changes in the organisms' observable traits. All life on the planet exists because it evolves to best fit the environmental conditions and those who adapt best, pass on those characteristics to their offspring. In other words, descent with modification.
Explanation:
I majored in Biology