What is NOT true concerning creatine?
a. It is sold as a performance enhancer.
b. Muscles use its phosphorylated form as an
instant energy source.
c. The body normally makes some and takes in
more from food.
d. Its production is highly regulated
e. Long-term side effects of creatine are unknown.
Answer: d
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Natural selection exerts little or no effect on traits that appear during an individual’s ____
a. preadolescent years b. embryonic development c. juvenile phase d. postreproductive life e. reproductive life
Which bone helps support the nose?
a. zygomatic b. mandible c. maxilla d. sphenoid e. ethmoid
Autosomal aneuploidies arise by:
a. chromosome breakage and rejoining. b. nondisjunction. c. errors in crossing-over. d. mistakes in chromosome replication. e. mutations.
Select the best response to the question. ? Hand hygiene with an alcohol-based hand rub is indicated in which of the following situations?
A) after eating B) before repositioning a patient in bed C) if hands are visibly soiled D) after using the restroom