On a field trip, you find rock that has long, parallel grooves. form a hypothesis that explains this feature.
what other landforms would you try to find to test this hypothesis?

The model illustrates a process by which a substance is taken up by a cell

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

The carrier molecules of the electron transport system are located in the