How do people with no access to a public water supply obtain water for their homes?

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.

Moving down the ramp from 6 meters to

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.