Mussels and Sponges Sometimes Contain Methanotrophs as Intracellular Symbionts Because

question 18

Multiple Choice

Mussels and sponges sometimes contain methanotrophs as intracellular symbionts because the methanotrophs

• A)remove otherwise toxic levels of methane from the environment.
• B)convert methane to carbohydrate for use by the host.
• C)allow the partnership to use hydrogen sulfide as a source of electrons.
• D)all of the choices

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Definitions:

Total Fixed Costs

The sum of all costs that do not change with the level of output or sales, over a specific period.

Level of Activity

A measure of the volume or quantity of production or operations in a given period, often used in cost accounting to analyze costs.

Mixed Cost

An expense that contains both fixed and variable components, changing with the level of output but also incurred when there is no output.

Variable Costs

Costs that change in proportion to the level of production or sales activity, such as materials and labor directly involved in a company's product.