Examlex
What is an example of the ability to think critically?
Chemical Signals
Molecules released by cells that are used to communicate with other cells, affecting their behavior or physiology.
Pheromones
Chemical signals released by an organism to affect the behavior or physiology of other members of the same species.
First Messenger
A signaling molecule that binds to a receptor on the surface of a cell and triggers a biochemical cascade that conveys signals inside the cell.
Second Messenger
Intracellular signaling molecules released by the cell in response to exposure to extracellular signaling molecules.
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