Which immunoproliferative disorder is a cancer of the plasma cells and results in secretion of light chains into the urine?
A) multiple myeloma
B) Waldenström's macroglobulinemia
C) alpha heavy chain disease
D) DiGeorge syndrome
Ans: A) multiple myeloma
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Which type of muscle typically surrounds hollow tubes and organs like the stomach?
A. smooth muscle B. skeletal muscle C. cardiac muscle D. voluntary muscle E. striated muscle
Answer the question using the accompanying figure. The region that determines the class of antibody is indicated by
number ____.
a. 1 b. 2 c. 3 d. 4 e. 5
This unique feeding structure, called a lophophore, is found in which of these groups?
1.brachiopods
2.bivalves
3.porifera
4.polychaetes
Almost all organisms alive today evolved from marine creatures alive at the beginning of the
A. Precambrian time. B. Paleozoic era. C. Jurassic period. D. Cenozoic era.