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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.

Apart of an ecosystem that can restrict the growth of a population is referred to as

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles