A. The relative percentage of body fat compared to lean body mass (muscle, bone, water). B. The amount of force that can be produced by a single contraction of a muscle. C. The range of movement possible at various joints.

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synapse nervous system

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.