When the body performs cellular respiration, food is changed into a form of energy called ________.
A. RNA
B. ADP
C. DNA
D. ATP
Answer: D
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Action potential frequency is best described as:
A) The strength of the muscle contractions. B) The distance the action potential travels in a second. C) The duration of an action potential. D) The number of action potentials produced per unit of time.
Which modification of the small intestine creates a brush border appearance upon microscopic examination?
A) microvilli B) plicae circulares C) villi D) circular folds
__________ bone is always surrounded by __________.
A. Compact; cartilage B. Compact; spongy bone C. Spongy; compact bone D. A diaphysis; an epiphysis E. Spongy; a medullary cavity
The anal triangle includes the urethra
Indicate whether this statement is true or false.