Which Process Is Not a Main Function of the Kidneys

question 49

Multiple Choice

Which process is not a main function of the kidneys?

• A) Excretion of ammonia in freshwater fish
• B) Maintenance of water balance in mammals
• C) Regulation of blood plasma in amphibians
• D) Removal of excess water from extracellular fluid in crayfish
• E) Conservation of water in desert tortoises

---

Definitions:

Segment Margin

The amount of profit or loss generated by a particular segment of a business, after accounting for the direct and indirect costs associated with that segment.

Segmented Income Statement

A financial statement that breaks down revenues, expenses, and profits by specific segments, such as product lines or geographic areas, within a company.

Variable Expenses

Variable expenses are costs that change in proportion with the level of activity or production volume, such as raw materials and direct labor.

Contribution Margin

The residual sum from sales income following the subtraction of variable costs.