1. Ajar contains 100 marbles totalSome are blackIf you pull 4 marbles out and 1 is blackhow many out of the 100 marbles would you guess are black? Explain .

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so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

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tobey

it enhances antibody production by t cells of the adaptive immune system.

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explanation:

currents is the correct answer.