What type of acidic stain colors the background, not the specimen?

What is present in all cells? 

Match the growth terms with their definitions. 

Select all of the following statements that represent differences between eukaryotes and prokaryotes?

Who first observed unicellular organisms, which he called “animalcules,” using a microscope he developed?

Select all of the following statements that describe endosymbiotic theory:

Capnophiles are bacteria that grow best under which of the following conditions?

Who is credited for his “accidental” discovery of a naturally occurring antimicrobial agent?

Which domain(s) contain prokaryotes? 

Select all that apply. Which of the following are domains of taxonomy?