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amid [387]
3 years ago
7

Robert Koch helped establish the germ theory of disease by discovering that anthrax was caused by a bacteria. After he isolated

and purified the same bacteria from several diseased animals, what would be the next step in order to show that this bacteria caused anthrax?
Social Studies
1 answer:
Readme [11.4K]3 years ago
3 0

Answer:

Inoculate them in healthy animals.

Explanation:

Koch could hypothesize that the bacteria he isolated from sick animals was the cause of Anthrax; however, he could only confirm this by inoculating the isolated bacteria into healthy animals expecting them to get sick as well. After they got sick, he had to again isolate the same bacteria from them.

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Answer:

Negative Reinforcement.

Explanation

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A group of researchers recruited a group of 100 college freshman to test the effectiveness of discussion boards to help students
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Answer:

B. Between groups design

Explanation:

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geniusboy [140]

Answer:

Experimental Research.

Explanation:

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<u>In the given case, Caterpillar is using the experimental research method. Caterpillar is trying to understand the cause-and-effect relationship between the two variables-- the operators and two types of steering mechanisms, in which dependent variable-- the operators, remains constant, and steering mechanisms is manipulated.</u>

Thus the experimental research method is the correct answer.

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Foreign employment is blessing in disguise​
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