A part of the immunoglobulin molecule that is between two globular regions, is rich in prolines, and is flexible is called
a. the amino terminal end
b. the carboxyterminal end
c. the idiotype
d. the hinge region
d. the hinge region
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Which of the following body reactions is characteristic of the stress response?
A. Your pupils constrict. B. Your blood pressure increases. C. Your body temperature drops D. Your heart rate decreases.
The normal balance (homeostasis) between new bone deposition and bone resorption (breakdown) is maintained by all of the following, EXCEPT ________
A) exercise and exposure to the sun B) parathyroid hormone and calcitonin hormone C) calcium and vitamin D in the diet D) all of the above
) If an insect is inside your ear, you should kill it with a cotton-tipped swab and then remove it with tweezers
Indicate whether the statement is true or false.
?In a study that observed parent-child interactions over several days, researchers found that, on average, there were _____ negative comments for every positive one spoken to each child.
A. 10? B. ?50 C. ?200 D. ?400 E. ?600