Answer all three please

Early microscopes Select one: a. allowed Robert Hooke to see bacteria. b. refuted spontaneous generation. c. showed cells in living material. d. allowed the development of chemotherapy. Endosymbionts in plants Select one: a. fix nitrogen needed for proteins and nucleic acids. b. regulate the immune system. c. break down complex fibers. d. fix carbon during photosynthesis. Examples of microbes used to advance DNA technology include the following EXCEPT Select one: a. identification of gene regulation through DNA binding proteins. b. using natural bacterial recombination to ‘clone’ genes. c. large genomes with lots of raw material to work with. d. bacterial DNA polymerases that can withstand high temperatures to rapidly amplify DNA in PCR.