An oxygen atom can have 8, 9, or 10 neutrons in its nucleus. This variation describes

A) atomic number.
B) electric charge.
C) bonding characteristics.
D) isotopes.
E) proton therapy.


D) isotopes.

Anatomy & Physiology

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In a normal ECG tracing, the QRS complex represents the:

a. repolarization of the atria b. depolarization of the atria c. repolarization of the ventricles d. depolarization of the ventricles

Anatomy & Physiology

Select the primary buffer system in the ECF

a. bicarbonate/carbonic acid b. chloride/hydrochloric acid c. hemoglobin d. phosphate e. protein

Anatomy & Physiology

Ovarian estrogen production decreases during climacteric

Indicate whether the statement is true or false

Anatomy & Physiology

A broad sheet of dense connective tissue that attaches the coverings of adjacent muscles is called a(n) ________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology