Cell communication occurs among the cells in a multicellular organism. For each of the 3 examples of cell-to-cell communication, describe the communication that occurs and the types of responses that result from this communication

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

they dont have any evidence