Diffusion is when particles are moved by themselves.
So if there so no wind and you smell skunk spray it is diffusion!
The gelatinous material found in the posterior cavity is the vitreous humor.
The vitreous humor is a transparent, colorless, gel-like substance located in the posterior chamber of the eye. It helps maintain the round shape of the eye and can also help with vision clarity and shock absorbance.
Fluid fills most of the inside of the eye. The chambers in front of the lens (both the anterior and posterior chambers) are filled with a clear, watery fluid called aqueous humor. The large space behind the lens (the vitreous chamber) contains a thick, gel-like fluid called vitreous humor or vitreous gel.
To learn more about vitreous humor , here
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A) <span>The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme itself remains unchanged. </span>
Propane is the correct answer to your question
The system that is made up of those is called the Respiratory System
