How does volcanic activity affect climate? 1) gas and ash filter out solar radiation, causing the temperature to -increase -decrease - stay the same 2) water vapor and carbon dioxide are released into the atmosphere, causing the climate to get -warmer -cooler -drier

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

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.

Which element is found in both dna and proteins