Answer:
Zinc
Explanation:
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Osteomalacia<span>
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False.
Extinction = Behaviors that are not reinforced will become weaker (occur less often).
Adults should<span> do at least 2 hours and 30 minutes </span>each week<span>of aerobic </span>physical activity<span> at a moderate level OR 1 hour and 15 minutes </span>each week<span> of aerobic </span>physical activity<span> at a vigorous level.</span>
