T helper cells possess a glycoprotein called CD4. This molecule binds to
A. MHC class I molecules.
B. MHC class II molecules.
C. MHC-CD8 antigens.
D. MHC-CD28 antigens.
E. Interleukin-1 receptor.
B
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Oxytocin ________
A) exerts its most important effects during menstruation B) release is an example of a positive feedback control mechanism C) is an anterior pituitary secretion D) controls milk production
Cells of the ________ gather around the notochord and neural tube and produce the vertebra and rib at their associated level
A) myotome B) intermediate mesoderm C) dermatome D) sclerotome
Oxygen consumption is normally directly proportional to metabolic rate.
Answer the following statement true (T) or false (F)
Cellular membrane potential is measured in
A) milliseconds. B) micrometers. C) Hertz. D) millivolts. E) amperes.