Although Edward Jenner was not the first to use vaccination procedures to prevent disease, he was the first to document such procedures.
a. true
b. false
Answer: a. true
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Which of the following terms does NOT belong with the other four?
a. Radiolaria b. Chlorarachniophyta c. Foraminifera d. Charophyta e. Rhizaria
Historically, gastric ulcers were thought to be caused by stress. Recent medical discoveries now link gastric ulcers to
A) diet. B) age. C) a bacterial infection. D) a viral infection.
After cell division, each daughter cell has
A) a lower surface area/volume ratio than the parent cell. B) a higher surface area/volume ratio than the parent cell. C) more DNA in its nucleus than the parent cell. D) less DNA in its nucleus than the parent cell.
The majority of mature, self-tolerant lymphocytes are found in
A. the MALT. B. lymph nodes. C. the thymus. D. the spleen. E. the tonsils.