What varies from one isotope of an element to another isotope of the same element?

A) atomic number
B) mass number
C) number of protons
D) both the atomic number and the number of protons


Answer: B

Anatomy & Physiology

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Hyperpnea results from exercise when breathing becomes deeper and more vigorous

Indicate whether the statement is true or false

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Which type of immunity occurs as a result of having had and recovered from a disease?

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The shape of the lens is controlled by the

A) pupillary sphincter muscles. B) pupillary radial muscles. C) ciliary muscles. D) iris. E) cornea.

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After ovulation, the remnant of the ruptured follicle develops into the

A) Corpus allatum. B) Corpus luteum. C) Graafian follicle. D) Polar bodies.

Anatomy & Physiology