In Flour Beetles and Desert Locusts, How Is Water Conserved

question 39

Multiple Choice

In flour beetles and desert locusts, how is water conserved?

• A) Water is transported into hindgut cells through endocytosis.
• B) The pre- urine formed in the Malpighian tubules is hypertonic.
• C) Sodium and chloride are actively transported out of pre- urine, and water follows, forming a hypertonic urine.
• D) Urine that is formed is isotonic to hemolymph, but the muscle cells surrounding spiracles of these organisms are able to significantly limit water loss due to respiration.

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Definitions:

Risk-free Rate

The theoretical return on investment of an absolutely risk-free asset, often represented by the yield on government securities.

Pure Discount Debt

A type of debt instrument that is issued at a discount to its face value, pays no interest, and is redeemed at its full face value at maturity.

Risk-free Rate

The theoretical rate of return of an investment with zero risk, typically associated with government bonds.

Call Provision

Agreement giving the corporation the option to repurchase the bond at a specified price before maturity.