The general equations for photosynthesis and cellular respiration show how the two processes are interconnected in natural cycles. Which substance is a product of cellular respiration and a reactant
in photosynthesis?
a. Carbon dioxide
b. Glucose
c. Oxygen
d. Water

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.