Which class of organic compounds stores ene
as stores energy as fat?
a carbohydrates
b proteins
c nucleic acids
d lipids

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

What drives an advertising campaign?

What's the waste product of electrons and pyruvate combining in fermentation?