George Brooks and his colleagus investigted lactic acid in muscle cells. what are their finding how have their findings affected the goals of athletic training

not sure if this is what you'r looking for eubacteria and archaebacteria

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave