What unit of light stimulates photoreceptor cells in the retina?

Photons

Explanation:

The retina is a thin layer (membrane) in the eye that receives light through photoreceptor cells that convert this light into chemical and nervous signals transported to the brain's visual center.

The photoreceptors in the retina are known as rods and cones. Rods detect motion and sare responsible for black and white vision, they are present in the macula. Cones on the other and, are responsible for central and color vision. These photoreceptors absorb photons that trigger the membrane's potential of the cells.

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Regarding what is written, it would be considered true if the antibacterial soap used has the real capacity to kill 99.9% of bacteria.

If so, it should be clarified that 1 of the resistant bacteria will survive hand washing, so it cannot be considered as sterilization.

Explanation:

The bacteria that survive, which would be 1% are considered to be the most pathogenic bacteria, which is why it may be that if Wendy continues having this habit, the health of her hands will worsen since she may suffer from opportunistic infections or possible dermatitis.