The breakdown of large molecules by enzymes and the addition of water is known as a reaction.
a.
oxidation
b.
decarboxylation
c.
hydrolysis
d.
condensation
e.
reduction

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels

Which of these statements is false? a. others may notice a problem with a relationship before the people involved. b. the first sign of a problem with a relationship is a feeling of anger. c. damaged relationships can be repaired. d. even good relationships can be damaged.

Which animal is a producer in this ecosystem