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stimulates heartbeat, raises blood pressure, dilates pupils, dilates trachea and bronchi
body is facing forward, feet are parallel, and arms are at the sides with palms facing forward
breathing properly requires the presence of what compound that affects surface tension of the alveoli in the lungs
what happens when an ice cube is placed in a glass of water
water releases heat to ice in process conduction
an object immersed in a fluid is buoyed up by a force equal to the weight of fluid displaced by the object.
object with at least one slanting side ending in a sharp edge, which cuts material apart (shovel)
an inclined plane wrapped around a pole which holds things together or lifts materials (screw)
newtons first law of motion
every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it (gravity) INTERTIA
pituitary, thyroid, parathyroid, pineal, thymus, adrenal, pancreas, ovary, testis
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