Which of the following is part of the adaptive immune response?
A. Production of antibodies
B. Synthesis of defensins
C. Inflammation
D. Phagocytosis
Answer: A
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Which of the following is NOT one of the four basic types of tissues found in the human body?
a) epithelial tissue b) connective tissue c) muscular tissue d) necrotic tissue e) nervous tissue
The hematocrit measures ________
A) the volume of WBC in a blood sample B) the number of WBC/mm3 of blood C) the number of RBC/mm3 of blood D) the volume of RBC in a blood sample
An incompetent mitral valve may cause blood to back up into the
A. aorta. B. left atrium. C. left ventricle. D. coronary circulation. E. right atrium.
Why are some salts excreted?
A. They maintain proper salt concentration in the blood. B. They are not excreted. C. They are end products of metabolism.