Stereoscopic vision provides ________.
A. bipedalism
B. opposition of thumbs
C. opposable perception
D. depth perception
E. color perception
Answer: D
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The two lobes of the thyroid gland are connected by the
A) isthmus. B) pars intermedia. C) commissure. D) aqueduct. E) infundibulum.
Choose the FALSE statement.
A. Because sodium and potassium ions cross the membrane during an action potential, their concentrations inside the cell change significantly. B. A hyperpolarized cell has a negative membrane potential compared to one at rest. C. Within a single neuron, different types of voltage-gated ion channels may have different threshold voltages. D. If a second graded potential begins before the first one ends, the voltage changes add together.
Interlobar veins unite at the right and left ____veins that exit the right and left kidney at the hilum
a. arcuate b. hepatic c. renal d. abdominal
Histologically, what feature is shared by all tonsils but is absent in other MALT nodules?
A) Crypts B) Efferent vessels C) Germinal centers D) Capsules