Why is malaria such an effective disease? What will be an ideal response?


ANSWER: There are many reasons that malaria is effective. Perhaps most significant is the mosquito
vector. Mosquitoes offer the Plasmodium direct access to the blood so the pathogen does not
need to rely on accidental cuts or openings. In addition, the mosquito solves the problem of
moving the pathogen between hosts. In addition, the pathogen assists the vector by both
making the host week and making them secrete a mosquito-appealing odor, increasing the
odds of a mosquito successfully visiting them.

Biology & Microbiology

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Microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of

A) carbon. B) nitrogen. C) sulfur. D) carbon, nitrogen, and sulfur.

Biology & Microbiology

Pressure in the middle ear is equalized with the external air pressure through the auditory tube

Indicate whether the statement is true or false

Biology & Microbiology

Lithoautotrophs use inorganic nutrients for carbon and energy sources.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The determining function that drives share of accepted job offers for a company is given by the following equation: AcceptedOfferst = ?0 + ?1StartingSalaryt + ?2EconomicClimatet + Ut, where the unit of observation is particular month (t). Suppose one wanted to use the national unemployment rate (unemploymentt) as a proxy for EconomicClimate. Which of the following would be a condition that would rule out the unemployment rate being a good proxy for economic climate?

A. ?2 < 0 B. Unemployment rate to be correlated with "other factors" (Ut) C. EconomicClimate is correlated with StartingSalary D. ?2 > 0

Biology & Microbiology