Select the term that completes this sentence correctly: "Because our body uses bicarbonate to buffer metabolic acids, we can rid our body of excess acid by exhaling _______."

A. carbon dioxide
B. heat
C. oxygen
D. nitrogen
E. water vapor


Answer: A. carbon dioxide

Anatomy & Physiology

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Which describes a covalent bond?

A. A bond between two free radicals B. The positive side of one molecule is attracted to the negative side of another C. A bond between water molecules D. Two atoms share electrons with each other from their outermost shell E. A bond between two oppositely charged ions

Anatomy & Physiology

Synovial fluid is classified as interstitial fluid and is located inside certain joints where it serves as a shock absorber

Indicate whether the statement is true or false

Anatomy & Physiology

What are osteoclasts?

A. Cells that break down bone B. Cells that build bone C. Cells that break down cartilage D. Cells that build cartilage

Anatomy & Physiology

It is because of adaptive ________ that people normally get chickenpox only once.

A. immunity B. WBCs C. antibodies D. antigens

Anatomy & Physiology