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alternate units of measurement of energy supplied by food.
this muscle 'opens' or straightens the joint when it contracts (so the angle between the two...
the most common and most movable type of joint in the body of a mammal e.g. the elbow.
water that falls to earth in any form, such as rain, snow, hail and sleet.
(also called radioactive dating) a method of measuring the age of fossils based on how much...