Tetanus vaccine contains
A. inactivated bacteria.
B. inactivated spores.
C. live bacteria.
D. inactivated tetanospasmin.
D
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Which of the following is responsible for causing gas gangrene?
A. Clostridium acetobutylicum B. Clostridium tetani C. Clostridium perfringens D. Clostridium botulinum
Based on modern understanding of physiology, DNA sequences, and the fossil record, which of the following types of animals is most closely related to crocodiles?
a. snakes b. birds c. fleshy-finned fishes d. lizards e. mammals
Can you inherit physical traits that your parents acquired during their lifetime?
A. Only if it improves reproductive success B. Yes C. No D. Only if it improves survivability
The process by which a plant sheds leaves or other parts is known as _____.
A. abscission B. ripening C. maturation D. transpiration E. vaporization