What Tool or Technique Used by Ivanowski and Beijerinck While

question 20

Multiple Choice

What tool or technique used by Ivanowski and Beijerinck while studying diseased tobacco plants enabled them to determine that the disease was caused by an agent significantly smaller than bacteria?

• A)scanning electron microscopy that enabled them to view the virus the tobacco mosaic virus
• B)transmission electron microscopy that allowed them to view the tobacco mosaic virus
• C)porcelain filters that trapped bacteria but allowed passage of the virus
• D)cell culture that enabled cultivation of the virus

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Definitions:

Minimizes

The process of finding the lowest value of a function, often relevant in optimization problems.

Residuals

The differences between observed and predicted values in a statistical model or analysis.

Actual Y Values

The observed values in a dataset or experiment that are compared against predicted values to assess model accuracy.

Predicted Values

Predicted values are the estimates obtained from a statistical model, indicating what the model suggests should be observed given specific conditions or inputs.