small intestines

What Are The Two Types Of Digestive Systems?

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What Are The Two Types Of Digestive Systems? 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.

Why Do Animals Have Large Intestines?

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Why Do Animals Have Large Intestines? Due to their diet, carnivorous mammals have a shorter large intestine compared to herbivorous mammals. Large intestine: The large intestine reabsorbs water from undigested food and stores waste material until it is eliminated. Why do herbivores have longer gut? Herbivores have a longer small intestine than carnivores because they