The number of protons in an atom is called the
A. atomic weight.
B. atomic number.
C. combining weight.
D. mass number.
Answer: B
Anatomy & Physiology
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A hummingbird becomes ______________ when it relies on its energy reserves and drops its body temperature to conserve energy
Fill in the blank with the correct word.
Anatomy & Physiology
Mice that lack orexin have difficulty:
a. breathing at night. b. maintaining wakefulness. c. sleeping. d. waking up.
Anatomy & Physiology
Energy transformations result in ________ in entropy.
A. an increase B. no change C. a decrease
Anatomy & Physiology
_________ trigger(s) secretion of aldosterone.
A. Increased K+ B. Angiotensin II C. ANP D. Both a and b
Anatomy & Physiology