What Is the Main Difference Between Monotremes and Eutherians

question 9

Multiple Choice

What is the main difference between monotremes and eutherians?

• A)Monotremes are ectothermic, while eutherians are endothermic.
• B)Monotremes lay eggs, while eutherians give birth to live young.
• C)Monotremes lack the mammary glands that eutherians have.
• D)Monotremes finish developing their young in a pouch, while eutherians develop young in a placenta.

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Definitions:

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The individual and subjective perception of pain, which can vary greatly in intensity, quality, and emotional impact.