Which of These Is Not an Example of Mechanical Digestion

question 36

Multiple Choice

Which of these is not an example of mechanical digestion?

• A) Moistening the food
• B) Changing food from large to small particles
• C) Propelling food through the digestive tract
• D) All of the above are examples of mechanical digestion.

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Definitions:

Stratospheric Ozone

A layer of ozone molecules located in the Earth's stratosphere, protecting life by absorbing most of the sun's harmful ultraviolet radiation.

UVB

Ultraviolet B light, a component of sunlight with wavelengths between 280-315 nm, known for its role in vitamin D synthesis and skin tanning.

CFCs

Chlorofluorocarbons, compounds that were widely used as refrigerants and aerosol propellants but are harmful to the ozone layer.

Sulfur Oxides

Compounds formed from the combination of sulfur and oxygen, often produced by burning fossil fuels, and are significant contributors to pollution and acid rain.