B. some species die out when environmental changes occur
MMT stands for Manual Muscle Testing. In this test, the muscle disorders are examined such as muscle weakness or paralysis. It is a part of physical therapy where it is important to test both the left and right side to assess the physical strength of the muscles of a patient.
First one, disease causing microorganisms
A tornado is a violently rotating column of air extending from the base of a thunderstorm to the ground, often made visible by a condensation funnel. The formation of tornadoes<span> is complicated. So the answer would be A
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