You are given a sentence and your task is to generate another sentence that supports the given input.

Fluorescence of a substance is seen when the molecule is exposed to a specific wavelength of light (excitation wavelength or spectrum) and the light it emits ( the emission wavelength or spectrum) is always of a higher wavelength.
When exposed to ultraviolet, some substances, such as minerals, glow in characteristic visible wavelengths, in a process called fluorescence.

Its flexibility allows us to bend and twist our torsos and absorb the impact of daily living.
The flexibility of an object allows it to bend.

The organization of the motor system is similar to that of vision, beginning with the primary motor cortex at the posterior edge of the frontal lobe.

The primary motor cortex is located in the frontal lobe of the brain.