Which of the following equations is correct?
A) resistance = (length × radius4) / viscosity
B) cardiac output = stroke volume × heart rate
C) mean arterial pressure = resistance × viscosity
D) mean arterial pressure = cardiac output × stroke volume
E) cardiac output = mean arterial pressure × total peripheral resistance
Ans: B) cardiac output = stroke volume × heart rate
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The process of replica plating was designed to test if mutations occurred in response to a selective agent or if mutations were naturally present in the population before selection
Indicate whether the statement is true or false
Identify the appropriate DNA homolog, or complementary sequence, that could be used as a probe for in situ hybridization to the following target RNA: 5'-AUGCGAUUC-3'
a. 5'-TACGCTAAG-3' b. 5'-ATGCGATTC-3' c. 5'-GAATCGCAT-3' d. 5'-AUGCGAUUC-3'
Botanically, the fibers in your cotton t-shirt are _____
a. angiosperm seeds d. fibers from pine needles b. gymnosperm seeds e. cellulose-rich hairs c. lignin fibers
XH2 + NAD+ ? X + NADH + H+. In the preceding equation, NAD+ is said to be:
a. an enzyme. b. storing two hydrogen atoms. c. reduced. d. oxidized. e. a catalyst.