When Compared with Ectotherms, Endotherms

question 231

Multiple Choice

When compared with ectotherms, endotherms

• A) have cells that are more efficient at using energy.
• B) have cells that are less leaky to ions.
• C) expend less energy to maintain concentration gradients of K⁺ and Na⁺.
• D) have cells that have higher metabolic rates.
• E) must actively transport more K⁺ out of their cells when at rest.

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Definitions:

Market Yield

The current annual income return of an investment divided by the present market price.

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Bonds that do not pay periodic interest payments and are sold at a discount from their face value.

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The current price at which an asset or service can be bought or sold on the open market.

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A bond that pays the holder a fixed interest payment (coupon) at regular intervals until the maturity date, when the principal amount is repaid.