The Study of Environmental Science Answers

A student has four snails, four sprigs of Elodea, eight test tubes of bromothymol blue, and two rooms (light and dark). The student wants to know what gases are produced by the snails and Elodea in light and dark conditions. Assuming the student only has time for one experiment, what setup will yield the most complete data? a. Experiment 1 b. Experiment 2 c. Experiment 3 d. Experiment 4 Please select the best answer from the choices provided

In a sealed tank is a large sprig of Elodea and a snail. The tank is kept for several weeks on a sunny window sill. Both the plant and snail live and appear to be healthy. Why does this happen? a.The snail produces oxygen, and the plant produces carbon dioxide. b.Both the snail and the plant produce oxygen. c.The snail produces carbon dioxide, while the plant produces oxygen. d.Both the snail and plant produce carbon dioxide.

Which test tube would represent the outcome of a sprig of Elodea and a snail incubated in the dark for 24 hours? a. Test tube 1 b. Test tube 2 c. Test tube 3 d. Test tube 4 Please select the best answer from the choices provided