A critical biotic factor in Yellowstone National Park is A. high elevation

B. high temperatures in the summer

C. population of wolves
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D. proximity to water

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.

Which of the following is not a benefit of genetically modified foods? a. pest-resistant crops b. herbicide-resistant crops c. plants that do not require water?