The roots of a plant take in minerals and water from the soil. In which of the following processes is water used as a reactant?
A.
spore formation
B.
exfoliation
C.
photosynthesis
D.
cellular respiration

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

Nh3 +02-no + h20 is unbalanced what is the balanced equation