When cells communicate by the signaling process, one cell produces a signaling molecule that must be received by the signal receptor on or in the responding cell. Signaling molecules are often called ligands, a general term for molecules that bind specifically to other molecules (such as receptors).
Plant cells have all of these, but only a plant cell has a chloroplast.
On average, women live longer than men
Same as any stomach, a small, mucus-coated tissue balloon, filled with acid.
ew.
Answer:
B. Fertilizer can affect the growth of bean plants.
Explanation:
due to the observation. They observed that these plants, on average, were taller than another population of the same kind of bean plants that were not treated with fertilizer
