Question

when a torque acting on a system is zero the physical quantity that reamin s constannts is
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Answer 1

Answer:

Douglas-fir, spruce, true fir, beech, and maple are toward the top of the list for oxygen release.Lysosomes pass through various stages in the same cell. The phenomenon is called polymorphism or existence of more than one morphological form. Depending upon their morphology and function, there are four types of lysosomes— primary, secondary, residual bodies and auto-phagic vacuoles (Fig. 8.33).Industrial revolution has been brought about by the homo sapiens in the tool making technique.