From the perspective of the cell receiving the message, the three stages of cell signaling are from the perspective of the cell receiving the message, the three stages of cell signaling are signal reception, nucleus disintegration, and new cell generation. signal reception, cellular response, and cell division. the alpha, beta, and gamma stages. the paracrine, local, and synaptic stages. signal reception, signal transduction, and cellular response.

Signal reception, signal transduction, and cellular response.

Explanation:

The process of sensation starts as the sensory receptors receive an appropriate stimulus. This stage is called sensory reception. During this stage, the stimulus activates the receptors. The reception of the signal is followed by its transduction during which the sensory receptor converts the energy in the stimulus into a graded potential.

When a graded potential in a sensory neuron reaches a threshold, one or more nerve impulses are triggered. The nerve impulses are propagated towards the CNS. The specific part of CNS receives and integrates specific sensory inputs and sends the motor outputs to the effector organs/ glands which in turn produce the response.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).