Which of the following properties of water enable(s) it to function as a regulator of temperature for living organisms? (Hint: Think about what happens when you are sunbathing.)
A) High specific heat and high heat of vaporization
B) High specific heat
C) High heat of vaporization
D) Low specific heat
E) High specific heat and low heat of vaporization
E
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Two of the main ingredients in plant fertilizer are phosphorus and nitrogen. These elements are required for the synthesis of __________________, respectively, in the cells of the plants
A. DNA and proteins B. proteins and complex carbohydrates C. complex carbohydrates and DNA
Plants require water for transpiration, metabolism, and photosynthesis. How is water used in photosynthesis?
A. as a substrate for ATP synthase B. as an electron acceptor C. to combine with ADP forming ATP D. to combine with NADP+ to form NADPH E. as an electron donor
All of the following are common to both the Gram stain and the acid-fast stain EXCEPT
A. primary stain. B. counterstain. C. a decolorizing agent. D. a chemical mordant. E. a decolorizing agent and a counterstain.
All of the following are correct about salmonelloses except
A. non-typhoidal strains of salmonella are zoonotic in origin. B. foods contaminated by rodent feces may cause outbreaks.. C. outbreaks have been caused by eggs. D. drug resistance of salmonella is on the rise. E. strains are normal flora in dogs and cats.