1.

Simplify the expressions and evaluate: 3x (4x – 5) + 7 at x = 3

Answer»

Step-by-step explanation:

DIGESTION of starch of food begins in buccal CAVITY . The Buccal cavity or mouth CONSISTS of teeth, tongue and SALIVARY glands . Further salivary glands present in the mouth helps in the chemical digestion of food with the HELP of enzymes .



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