Use the Figure Above to Answer the Following Questions

question 38

Multiple Choice

Use the figure above to answer the following questions.
-A circulatory system that allows some mixing of oxygenated and oxygen-poor blood is indicated by

• A) A.
• B) B.
• C) C.
• D) A and B.
• E) all of these.

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Definitions:

Phosphorus

A chemical element with the symbol P and atomic number 15, essential for life, used in fertilizers, and present in bones, DNA, and ATP.

Parathormone

A hormone produced by the parathyroid glands that helps regulate calcium levels in the blood.

Calcium

An essential mineral for human health, crucial for bone and teeth formation, blood clotting, and muscle function.

Bones

The hard, structural components that make up the skeleton of vertebrates, providing support, protection, and aiding in movement.