Soil moisture is the independent variable. True The proportion of individuals is the dependent variable. True Species B and Species C have a similar average tolerance for soil moisture. False Species C tolerates a broader range of soil moisture than species B. True Species C is more likely to live in a desert than Species A. False

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one