Match each description with the
Molecules that are released and act within an organ on nearby cells, allowing cells of an organ to regulate one another.
Regulatory chemicals that are secreted into the extracellular fluid, carried by blood, and act at a distance from its source.
Signaling molecules that affect the cell's own behavior; for example, this is common in the immune system.
Chemicals that are released into the environment for communication between individuals of a single species.
Molecules that are released into
Match each description with th
Molecules that are released and act within an organ on nearby cells,allowing cells of an organ to regulate one another.
Regulatory chemicals that are secreted into the extracellular fluid,carried by blood,and act at a distance from its source
Signaling molecules that affect the cell's own behavior;for example,this is common in the immune system.
Chemicals that are released into the environment for communication between individuals of a single species
Molecules that are released into