How often does the body perform cellular respiration?

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

Hydroelectric uses moving water to do work such as grinding grains in a mill true or false

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.