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Brock Biology of Microorganisms (Chapter 1) Exam 2025 Questions and Answers Microorganisms - ....ANSWER ...-Life forms too small to be seen by the human eye Microbial communities - ....ANSWER ...-Groups of microorganisms living together in an environment Oldest form of life - ....ANSWER ...-Microorganisms are the oldest known life forms on Earth Earth's biomass - ....ANSWER ...-Microorganisms make up a major fraction of Earth's biomass Microbial applications - ....ANSWER ...-Microorganisms have various applications in different fields Microscopy - ....ANSWER ...-The use of microscopes to visualize small objects or organisms Culture medium - ....ANSWER ...-A substance that provides nutrients for the growth of microorganisms in a laboratory setting …FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1