Signaling molecules are divided into categories based upon their chemical structure. Which of the following is NOT a chemical structure category for signaling molecules?

a. retinoids
b. gases
c. pyrimidines
d. amines
e. peptides


C

Anatomy & Physiology

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The ilium ends at a sphincter, the ________.

What will be an ideal response?

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What is fibrin's most important property?

a. stretchiness b. hardness c. sponginess d. softness e. porosity

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A lever system works at a mechanical advantage when:

A) the fulcrum is located farther from the applied force. B) the fulcrum is equally situated between the load and the force. C) the fulcrum is located closer to the applied force. D) a small load is to be moved.

Anatomy & Physiology

When ________ become enclosed in lacunae, they become cells called ________.

A. osteocytes; osteoblasts B. osteoblasts; osteoclasts C. osteocytes; osteoclasts D. osteoblasts; osteocytes E. osteogenic cells; osteoblasts

Anatomy & Physiology