Which is a problem associated with a declining population size? a. an aging population b. scarce food supplies c. limited health care

hey there!

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

answer: a. a gene that causes a specific trait.