Joseph Lister ________.
A. pioneered the use of gamma rays for sterilizing food
B. designed and built the first autoclave
C. demonstrated that microorganisms are carried on dust particles in the air
D. revolutionized surgery by introducing phenol as a disinfectant
Answer: D
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a. glycoprotein b. lipoprotein c. fibrous proteins d. denatured proteins e. prions
Which of the following activates the egg?
A. Fusion of sperm and egg membranes B. Fusion of sperm and egg nuclei C. Contact of sperm with the outside of the zona pellucida D. Entrance of sperm into the zona pellucida E. Contact of sperm with the vitelline envelope
Which of the following cells is NOT infected by HIV?
A. helper T cells B. microglia C. B lymphocytes D. macrophages E. dendritic cells
Immersion oil increases the amount of light entering the objective lens.
Answer the following statement true (T) or false (F)