The largest ratite, a large, flightless bird native to Africa that may be black, blue, or red, is the:
A) rhea
B) parrot
C) emu
D) ostrich
D
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In which body system are cytokines produced?
A) Respiratory system B) Circulatory system C) Nervous system D) Reproductive system
The flow cytometer contains a flow chamber that has two columns of fluid—sample and sheath—maintained at different pressure. Which of the following statements about the flow chamber is correct?
a. Cells in the outer column become dispersed. b. The sample fluid has turbulent flow. c. Cells are aligned in single file in front of the laser. d. The two columns of fluid differ in color.
The plasma and red blood cells are separated by what when using anticoagulated tubes?
a. Serum b. Fibrinogen c. Buffy coat d. Platelets
Which of the following is a denaturing agent?
A. soap B. heat C. mercury D. all of the above