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BIO 320 EXAM 1 NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Which of the following represent the most common source of Emerging Infectious Diseases (EID) into the human population?environmental microbes from aquatic (water) sources environmental microbes from terrestrial (land) sources zoonotic diseases in wild animal populations plant microbes (pathogens) None of the above, EIDs do not occur in human populations. - ANSWER-zoonotic diseases in wild animal populations
Which of the following taxonomic groups contains organisms with the greatest genetic similarity?family domain genus class 1 / 4
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Species - ANSWER-species
The microorganisms that recycle nutrients by breaking down
dead matter and wastes are called:
decomposers prokaryotes pathogens eukaryotes Fermenters - ANSWER-decomposers
Evolution of prokaryotes (bacteria and archaea) is facilitated by genetic changes due to mutation and ________? - ANSWER- horizontal gene transfer
Several investigators, from Redi to Pasteur, did experiments in a quest to disprove the theory of Spontaneous Generation. This
theory contends:
Life comes from pre-exisiting life Complex life forms have developed from bacteria Life can arise directly from vital forces from decaying, non- living matter All living things spout from seeds 2 / 4
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Spontaneous generation has never been disproved and is accepted today - ANSWER-Life can arise directly from vital forces from decaying, non-living matter
Which of the following is not a process in the scientific method?belief in a preconceived idea formulate a hypothesis systematic observation careful experimentation development of a theory - ANSWER-belief in a preconceived idea
Cyanobacteria have been instrumental in the transformation and
maintenance of the planet through their production of:
nitrogen nitric oxide carbon dioxide ammonia Oxygen - ANSWER-oxygen
Which activity is an example of biotechnology? 3 / 4
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bacteria in the soil secreting an antibiotic to kill competitors a microbiologist using the microscope to study bacteria Egyptians using moldy bread on wounds genetic engineering of bacteria to produce human insulin public health officials monitoring diseases in a community - ANSWER-genetic engineering of bacteria to produce human insulin
Which statement(s) accurately describe the relationship of bacteria to archaea? Choose all that apply.both are members of the same Domain of life both have cell walls made of peptidoglycan both are prokaryotic archaea are generally better adapted to harsh environments than bacteria bacteria are believed to have diverged from the Last Universal Common Ancestor before archaea - ANSWER-both are prokaryotic archaea are generally better adapted to harsh environments than bacteria bacteria are believed to have diverged from the Last Universal Common Ancestor before archaea (unsure)
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