The number of protons and elctrons adds up to the mass number
The answer for this is Density
Nodes. Leaves are attached the plant stem at areas called nodes .
Salt molecules are much smaller than starch molecules and can pass through more easily. ... Thus, they are quite large molecules in contrast to the relatively small salt molecules. The smaller salt molecules pass through the membrane easily, but the larger starch molecules cannot pass through the membrane.
D. Photosynthesis only takes place in the light, while cellular respiration takes place in the light and dark.
