Robert Koch contributed to the field of microbiology by being the first person to

A) develop the tuberculin test.
B) formulate four postulates for definitively linking a specific microorganism to a specific disease.
C) use agar as a solidifying agent in growth media.
D) develop the tuberculin test, formulate four postulates for definitively linking a specific microorganism to a specific disease, and use agar as a solidifying agent in growth media.


Answer: D

Biology & Microbiology

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This illustration shows

a. cytoplasmic division in an animal cell. b. a contractile ring mechanism. c. how chromosomes are dragged to the poles. d. cytoplasmic division in an animal cell and a contractile ring mechanism. e. cytoplasmic division in an animal cell and how chromosomes are dragged to the poles

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The ability to maintain an upright position is due to ________ muscle contractions

Fill in the blank(s) with correct word

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The survival of plants depends on

A. Sunlight, water, and organic materials B. Water, minerals, and organic materials C. Water, minerals, and sunlight D. Water, oxygen, and sunlight

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How do companion cells load most of the carbohydrates into sieve tube members?

a. by symport b. through carrier proteins c. through plasmodesmata d. by antiport

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