Biology, 07.07.2019 17:30 caylah5921
To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas. the student then added different amounts of fertilizer mixed with distilled water to three of the containers and distilled water alone to one of the containers. which factor is being tested in this experiment? a. age of water fleas b. amount of distilled water c. amount of fertilizer d. size of habitat
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