Over Evolutionary Time, Photosynthesis Has, in Effect, Introduced Challenges to Itself

question 151

Multiple Choice

Over evolutionary time, photosynthesis has, in effect, introduced challenges to itself by producing an oxygen atmosphere because:

• A)rubisco is an oxygenase.
• B)rubisco is a carboxylase.
• C)O₂ is a strong oxidant.
• D)rubisco is an oxygenase and O₂ is a strong oxidant.
• E)rubisco is an oxygenase and O₂ is a strong reductant.

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Definitions:

Normal Random Variable

A random variable that has a normal distribution, often used in statistics and probability theory.

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much the values differ from the mean of the set.

Mean

The arithmetic average of a data set, obtained by adding all the numbers and dividing by the count of numbers.

Normal Random Variable

A variable whose occurrences are distributed according to the normal distribution.