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B. Ability to neutralize acid
D:
a,b,c are inherently bad or simply not helpful
The answer is active transport. Active transport is the development of atoms over a cell film from a locale of their lower focus to an area of their higher fixation—toward some slope or another hindering element.
Essential active transport, additionally called coordinate dynamic transport, specifically utilizes metabolic vitality to transport atoms over a layer
<span>Cells need a source of energy, they get this energy by breaking down food molecules to release, the stored chemical energy.This process is called 'cellular respiration'. The process is happens in all the cells in our body. Oxygen is used to oxidize food, main oxidized food is sugar(glucose).</span><span>Jan 14, 2009</span>