Multiple Choice
Which of the following statements explain how
this experiment relates to the cycling of
matter?
Elodea uses water and carbon dioxide to
produce glucose and oxygen. The snail
uses glucose and oxygen and produces
water and carbon dioxide.
Elodea uses light, oxygen and water to
produce glucose. The snail eats the
elodea and releases carbon dioxide as a
waste product
The snail performs photosynthesis which
C releases carbon dioxide into the
atmosphere.
Nitrogen-fixing bacteria remove ammonia
D from the testube and increases dissolved
oxygen.