Simple organic molecules can be organized into much longer, more complex molecules.
Hey!
Hope this helps...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A user mentioned in the comments of one of the answers deleted: "its B" < The user (<span>lolbae0806) had mentioned this...</span>
So I believe the correct answer is:
B.) More oxygen gas became present in the atmosphere.
Answer:
D.
Explanation:
Because I graduated from health class with high honors
Enzymes are made of proteins
that are capable of catalyzing a reaction in which various substrate are
converted to products through the formation of an intermediate enzyme-substrate
complex. It hastens reactions and acts as a catalyst without themselves
undergoing permanent chemical changes. The catalytic ability of enzymes is due
to its particular protein structure.