<span>In cells, enzymes are proteins that are needed to lower the amount of energy required to start chemical.</span>
Enzymes are biological catalysts which accelerate chemical reactions (reactions are millions of times faster than without them). Every enzyme has an active site which binds substrates and converts them into products.
The answer for that question is a
According to the theory of plate tectonics, _____.
A. the lithosphere is divided into plates
Is there a multiple choice or fill in the blank?
