Chemical signals that can only travel limited distances between cells Options Hormonal commuhication Paracrine Auto stimulation of a cell O Synaptic transmission

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A: Cdk6 is the protein which regulates cell cycle with protein V and RB protein.

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A:

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Learning and memory

Learning is defined as a relatively permanent and irreversible adaptive change in behavior. It always results from experience. The ability of an organism to store and recall the effects, sensations, and knowledge gained through learning and experience is called memory.