The most common kind of dispersion in nature is
a) clumped.
b) random.
c) uniform.
d) indeterminate.
e) dispersive.

clumped is the most common kind of distribution in nature

Explanation: trust me

I believe the answer would be a clumped as well

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.