The second structure encountered in a biopsy of the
digestive tract is the
a. mucosa.
b. submucosa.
c. longitudinal muscle layer.
d. circular muscle layer.
e. serosa.
Answer: b
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Methylated CpG sites are rarely observed in CpG islands near active genes
A. true B. false
The standard state of dilute aqueous solutions is at a temperature of ________°C (298 K), ________ atmosphere(s) of pressure, and with products and reactants present in concentration of ________ mol/L.
Fill in the blank(s) with the appropriate word(s).
Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates. This is called ____________ Rule.
A. Allen's B. the K-Selected C. the r-Selected D. Edward's
An increase in total peripheral resistance, in the absence of any change in cardiac output, would
A) reduce the stretch on the aorta. B) elevate mean arterial pressure. C) decrease pulmonary venous pressure. D) reduce mean arterial pressure. E) decrease central venous pressu