Gravitropism ensures that the plant in the figure will A.)grow roots into the soil.
B.)wrap tightly around a trellis.
C.)grow toward a light source.
D.)have shoots that grow toward the soil.

Which process of living things produces water that enters the water cycle

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d