Two species of birds feed on berries. the birds are active at different times of the day, and do not come into contact with one another. nonetheless, the presence of one species limits the survival and reproduction of the other. what type of competition is this

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