In the arctic energy pyramid which trophic, level has the least amount of energy available to it?

What type of cell is produced after fertilization occurs and the gametes combines ?

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important