Conception occurs when the male gamete fertilizes the female gamete.
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There are two kinds of digestion: mechanical and chemical. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.
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It means very determined, like you have a goal, and you are going to complete it. Even if you mess up you keep trying over and over again.
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