McDougal Little
Classzone
Carbon Transfer Through Snails and Elodea. In this investigation you will use snails
and Elodea to explore a biological system. You will form a hypothesis about the
relationship between snails and Elodea, and then design an experiment to test your
hypothesis.
Background
Al organisms are dependent on a healthy CO2-O2 balance. Photosynthesis and
cellular respiration are key processes in maintaining this balance. Plants, through
the process of photosynthesis, use energy absorbed from sunlight, water and carbon
dioxide to produce carbohydrates and oxygen. Animals and plants, through the
process of cellular respiration, use oxygen and sugars to produce carbon dioxide,
water, and the energy needed to maintain life.
If you need help while doing this experiment press on the play button beside the
audio tab for audio instructions.
You must click on every part of the lab to complete the checklist before moving on to
do the experiment
Follow the prompts and directions to complete the lab
Print your lab notebook.