What is the ratio of surface area to volume for a sphere with the following measurements? surface area = 300 m^2 volume = 500 m^3 a. 300 m^-1 b. 500 m^-1 c. 0.6 m^-1 d. 1.7 m^-1

Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction

What type of cell is produced after fertilization occurs and the gametes combines ?

When plants use sunlight to make food, the energy of sunlight is