Why Are Birds Able to Concentrate Their Urine Hyperosmotic to Their

question 15

Multiple Choice

Why are birds able to concentrate their urine hyperosmotic to their blood plasma?

• A) Their kidneys have loops of Henle.
• B) They excrete uric acid.
• C) They have an exceptional ability to excrete Na⁺.
• D) They have loopless nephrons.

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Definitions:

Exam

A formal test of a person's knowledge or proficiency in a subject or skill.

Meat

The flesh of animals as used for food.

Post Hoc

short for 'Post Hoc Ergo Propter Hoc', a logical fallacy where one assumes that since event Y followed event X, event X must have caused event Y.

Fallacy

A reasoning error that leads to a flawed argument.