In an experiment, a student mixed a substrate and an enzyme. which statement best explains the reaction?
a) the enzyme binds to the active sites on other enzymes.
b) the substrate binds to the non-active sites of the enzyme.
c) the substrate acts as a coenzyme that catalyzes the reaction.
d) the enzyme and the substrate form an enzyme-substrate complex.

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

How is the carbon cycle related to global warming ?

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic