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

Biology & Microbiology

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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.

Biology & Microbiology

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.

Biology & Microbiology

Which of the following terms does NOT belong with the other four?

a. Radiolaria b. Chlorarachniophyta c. Foraminifera d. Charophyta e. Rhizaria

Biology & Microbiology

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.

Biology & Microbiology