A tyrannosaurus did 107 kJ of work to lift its dinner , a 2721-kj hadrosaur, from ground . To what height did the Tyrannosaurus rex raise the hadrosaur ?

If cells in the process of dividing are subjected to colchicines, a drug that interferes with the functioning of the spindle fibers, at which stage will mitosis be arrested?

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Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.