the respiratory system includes a layer of cells in the air passage that clean the air before it gets to the lungs. this layer of cells if best classified as

This layer of cells is best classified as a tissue.

Explanation:

When a group of cells comes together to perform a specific function, they are called tissues. It's when a group of tissues comes together to perform a specified function that they become an organ.

if the concentration of products is decreased, the equilibrium will shift toward the products). add an inert gas (one that is not involved in the reaction) to the constant-volume reaction mixture: this will increase the total pressure of the system, but will have no effect on the equilibrium condition.

explanation:

passing a magnet thought the

mixture , because iron gets attracted to magnet .