Which of the following is not a common component of circulating blood?
a) blood plasma
b) formed elements
c) proerythrocytes
d) platelets
e) leukocytes
Answer: c) proerythrocytes
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Analysis of the genome of Mycobacterium tuberculosis has revealed all the following EXCEPT
A. it has 99.5% homology with the genome of M. bovis. B. it is significantly larger than the genome of M. leprae. C. it is more closely related to M. leprae than to M. bovis.
Most of the functions of plasma membranes are
carried out by a. cholesterol. b. proteins. c. hydrophilic heads. d. hydrophobic tails. e. carbohydrates.
The region where completely formed urine collects is
indicated by a. A. b. B. c. D. d. E. e. both A and B.
Which of the following statements concerning infection with Toxoplasma is FALSE?
A) It is one of the world's most widely distributed protozoan parasites in humans. B) It is typically contracted by eating undercooked meat. C) Even though it can be transmitted across the placenta, it is harmless to the fetus. D) The majority of infected people are asymptomatic. E) It usually results in no permanent damage and is self-limiting.