The equations for two biochemical reactions are shown below: 6 CO2 + 6H2O + energy - C6H12O6 + 6 02
C6H12O6 +6 O2 - 6 CO2 + 6H20+ energy
Which of the following statements are true regarding biochemical reaction?
1. Substances may be formed during biochemical reactions.
II. Substances may be broken down during biochemical reactions.
III. Energy may be needed to start a biochemical reaction.
IV. Energy may be produced during a biochemical reaction.

Every time there is a full moon, mrs. cook insists that students in her classes display strange behavior. what would be the best way for her to prove the validity of her theory? a. keep a journal of student behavior during different phases of the moon cycle b. research data to find concrete evidence of a link between the moon cycle and human behavior c. ask students to keep a journal of how they are feeling during different phases of the moon cycle d. survey other teachers in the building to see if they notice similar behaviors during the full moon