According to the Serial Endosymbiotic Theory, Chloroplasts Evolved From

question 18

Multiple Choice

According to the serial endosymbiotic theory, chloroplasts evolved from:

• A)bacteria.
• B)protists.
• C)fungi.
• D)plasmids.
• E)portions of the plasma membrane.

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Definitions:

Contribution Margin

The amount remaining from sales revenue after variable expenses are deducted, indicating how much contributes towards covering fixed costs and generating profit.

Variable Costs

Costs that change in proportion to the level of activity or volume of production in a business.

Pretax Income

The amount of income that a company earns before any taxes are deducted.

Variable Cost

Costs that vary in direct proportion to changes in the level of production or sales activity.