Which of the Following Groups Include Organisms That Are a Key

question 2

Multiple Choice

Which of the following groups include organisms that are a key source of food in all aquatic environments and whose fossilized forms are used as a filter and as a grinding and polishing agent?

• A)dinoflagellates
• B)diatoms
• C)amoebas
• D)brown algae

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Definitions:

Average Total Cost (ATC)

The total cost of production divided by the quantity produced, representing the cost on average of producing one unit of output.

Total Variable Costs (TVC)

Total Variable Costs represent the overall expenses that vary directly with the level of production output, such as raw materials and labor hours.

Output

The total amount of goods or services produced by a person, machine, or industry.

Profit-Maximizing Level

The specific output level at which a business achieves its maximum profit, determined through analysis of costs and revenues.