In Humans, the Body Needs to Maintain Oxygen Levels Within

question 46

Multiple Choice

In humans, the body needs to maintain oxygen levels within narrow homeostatic ranges. If the blood oxygen level drops below that range, the body responds by:

• A)using negative feedback loops to further lower the oxygen level.
• B)using positive feedback to raise the oxygen level.
• C)using negative feedback loops to return the oxygen level to normal.
• D)using positive feedback to further lower the oxygen level.
• E)setting this lower oxygen level as the new normal.

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Definitions:

Non-cash Item

Expenses or income that do not result in an actual cash outlay or receipt, like depreciation, amortization, or stock-based compensation.

Depreciation

An accounting method of allocating the cost of a tangible asset over its useful life, representing how much of an asset's value has been used up.

Statement Of Comprehensive Income

A financial statement that presents a company's total income, including items that are not included in the net income.

Net Income

The total profit of a company after all expenses and taxes have been deducted from revenues, a key indicator of a company's profitability.