What Is One Difference Between the Erythrocytes of Mammals and Other

question 20

Multiple Choice

What is one difference between the erythrocytes of mammals and other vertebrates?

• A) Mammalian erythrocytes lack nuclei.
• B) Mammalian erythrocytes respond to changes in water concentration.
• C) Mammalian erythrocytes are oval with swollen centers.
• D) Other vertebrates do not have erythrocytes.
• E) Other vertebrates use a respiratory pigment other than hemoglobin.

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Definitions:

Urine Volume

The total amount of urine excreted by the kidneys over a given period, important in assessing kidney function and fluid balance.

Medullary Concentration Gradient

A gradient responsible for the osmoregulation in the kidneys, allowing for the concentration or dilution of urine.

Kidney

An organ in vertebrates that filters waste from the blood, regulates body fluids, and excretes urine.

Urine Concentration

The process by which the kidneys regulate the water content and solute composition of the urine.