Some Protozoans Have Special Organelles Called Contractile Vacuoles That Continually

question 51

Multiple Choice

Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell.The presence of these organelles tells you that the environment

• A)contains a higher concentration of solutes than the protozoan.
• B)is isotonic to the protozoan.
• C)is hypotonic to the protozoan.
• D)is hypertonic to the protozoan.

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Definitions:

Fixed Monthly Expenses

Costs that do not vary in total within a reasonably short time frame, such as rent, salaries, and insurance premiums, paid on a monthly basis.

Net Operating Income

A measure of a company's profitability, calculated by subtracting operating expenses from operating income.

Contribution Format

A type of income statement format that separates variable costs from fixed costs to highlight the contribution margin.

Break-even Point

The financial point at which total revenue exactly matches total costs; neither profit nor loss is realized.