There are two primary variable involved in an experiment.  The independent variable and the _________ variable.

One Kcal is equal to one Calorie which is equal to ______ calorie.

Heterotrophs ______.

The reactants for cellular respiration include ________ and oxygen.

Humans make what end product in fermentation?

Humans make what end product in fermentation?

An organic molecule has what element in it?

Which is a monomer of one of the biological molecule classes?

Can we digest starch?

Biofuels are made from ______.