Question 12 (2 points)
Dark: Both Snails and Elodea
Choose the statement below that best explains the results you observed from this
lab:
In the test tube containing both snails and Elodea under the test tube cover, the
solution was:
yellow because Elodea can't perform photosynthesis and both Elodea and snails
are going through cellular respiration, causing carbon dioxide to build up.
green because Elodea and snails are both going through photosynthesis and
produce carbon dioxide.
blue because the carbon dioxide produced by Elodea and snails through cellular
respiration is taken out through Elodea's photosynthesis, so they balance each
other out.