Bacteria Are Rarely Larger Than 1-2 m in Size

question 108

Multiple Choice

Bacteria are rarely larger than 1-2 m in size, and are typically shaped like rods, spheres, or spirals. What likely accounts for the shape and size of these prokaryotes?

• A)Such shapes likely make it difficult for predators to catch bacteria.
• B)Such shapes can accommodate the complex arrangements of plasmids within bacteria.
• C)Such shapes facilitate the formation of pili in bacteria.
• D)Such shapes maximize the surface area over which nutrients can diffuse into bacteria.
• E)Such shapes both facilitate the formation of pili in bacteria and maximize the surface area over which nutrients can diffuse into bacteria.

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Definitions:

Coefficient of Correlation

A numerical metric that determines the intensity and course of a straight-line association between two variables that can be quantified.

Sample Coefficient

A measure that quantifies some kind of property or behavior, such as variability or correlation, from a sample of a population.

Correlation

Correlation refers to a statistical measure that indicates the extent to which two or more variables fluctuate together. A positive correlation indicates that as one variable increases, the other does too.

Coefficient of Determination

A statistic used in the context of statistical models whose main purpose is to provide a measure of how well observed outcomes are replicated by the model.