Question

Which of the test tubes shown below were most likely produced by a sprig of Elodea and a snail in the dark after 24 hours of incubation? 4 test tubes numbered 1 to 4. Each contains a snail and a sprig of the Elodea plant. Liquid in test tube 1 is blue. Liquid in test tube 2 is blue-green. Liquid in test tube 3 is green. Liquid in test tube 4 is yellow. a. Test tube 1 b. Test tube 2 c. Test tube 3 d. Test tube 4

Answer 1

Answer:

d. Test tube 4

Explanation:

After 24 hours of incubation, the test tube with the yellow water will be more likely be produced by the sprig of Elodea and a snail. Snails will produce only carbon dioxide, while the Elodea will produce carbon dioxide and oxygen gas.