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Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what