According to the principal of dominance, if a recessive gene for tallness is paired with another recessive gene for tallness, the organism a) will be tall b) may be tall or short c)will be short (no clue on this one)

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