Answer:
The smell of freshly baked cookies -> olfactory receptors
A person whispering -> auditory receptors
A rainbow outside a window -> cones
Stinky garbage -> olfactory receptors
Night vision -> rods
A loud bang -> auditory receptors
Shapes in a room after the lights are turned off -> rods
Bubbles are Carbon Dioxide
Oxegyn in the tank
There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link: https://www.creative-biogene.com/Product/Premade-Virus-Particles
