Suppose that a certain molecule composed of only carbon and hydrogen has a straight-chain backbone five carbons long and contains double or triple bonds. What is the minimum number of hydrogen atoms that the molecule must have?

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 is the best example of plant tissue? the answer is d (just took the test)

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp