One way the immune system fights pathogens

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Energy derived from hot rocks and fluids beneath the earth’s surface is

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