Which of the following is considered a major category of transmission of disease?
A) Vector transmission
B) Contact transmission
C) Vehicle transmission
D) Contact, vehicle, and vector transmission
Answer: D) Contact, vehicle, and vector transmission
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Which are short, hair-like structures that project from the surface of the cells?
a. Flagella b. Intermediate filaments c. Microtubules d. Centriole e. Cilia
Slash-and-burn agriculture affects global warming by ___
a. adding more methane gas to the environment, thereby increasing greenhouse gases b. removing methan producers from the environment, thereby decreasing greenhouse gases c. removing photosynthetic organisms from the environment, thereby increasing CO2 in the environment d. removing photosynthetic organisms from the environment, thereby decreasing CO2 in the environment e. no effect will be seen in global warming or greenhouse gases from this type of agriculture
Rachel Carson's book Silent Spring deals with the
A) destruction of polar habitats caused by global warming. B) environmental effects of pesticides. C) effects of lynx predation on snow hare populations. D) fate of tropical rain forests.
Which of the following is a sterilizing agent?
A. ozone B. hydrogen peroxide C. peracetic acid D. dish soap E. peracetic acid and hydrogen peroxide