Why don't hormones build up in the body over time?
A. They are secreted from the body by exocrine glands.
B. They are filtered out of the blood by lymph tissues.
C. They do, but target tissues become desensitized over time.
D. They are degraded by enzymes in the target tissue.
D. They are degraded by enzymes in the target tissue.
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A type of lymphocyte called a(n) ________ detects cells with abnormal surface proteins and kills them
A) eosinophil B) NK cell C) neutrophil D) basophil E) mast cell
"P" is the elemental symbol for
A. nickel. B. potassium. C. plutonium. D. phosphorus. E. copper.
Most ulcers are caused by____
a. eating spicy food b. overuse of aspirin c. bacterial infection d. stress e. poor diet
When sodium chloride is dissolved in water, it dissociates to form ______ ______ and ______ ______.
Fill in the blank(s) with the appropriate word(s).