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Answer All Parts of the Question That Follows

question 62

Essay

Answer all parts of the question that follows.
(A) Explain ONE advance in disease prevention since 1900.
(B) Explain ONE limitation in disease prevention since 1900.
(C) Explain ONE difference in diseases found in Less Economically Developed Countries (LEDC) and those found in More Economically Developed Countries (MEDC).


Definitions:

Weight Lifter

An individual who engages in the sport of lifting heavy weights as a form of physical exercise or competition.

Muscle Fiber

An individual muscle cell, long and cylindrical in shape, that contracts to produce movement.

Myofibrils

Rod-like units of a muscle fiber that are essential for muscle contraction, composed of sarcomeres.

Motor Units

Functional units of a muscle that consist of a motor neuron and all the muscle fibers it innervates.

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