For surface cultivation of microorganisms, a sulfated polymer called agar can be extracted from ________ and added to liquid media in order to cause it to solidify.

A. fungi
B. algae
C. animal fat
D. bacteria


Answer: B

Biology & Microbiology

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To act as an effective coolant in a car's radiator, a substance has to have the capacity to absorb a great deal of heat. You have a reference book with tables listing the physical properties of many liquids. In choosing a coolant for your car, which table would you check first?

A) pH B) density at room temperature C) heat of vaporization D) specific heat

Biology & Microbiology

The chemical reactions in cells are called ____

a. substrate b. coenzymes c. receptor sites d. metabolism e. active site

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In a polygynous mating system:

a. multiple females tend to mate with the same male. b. neither males nor females provide parental care beyond gestation and lactation. c. many females are unable to secure a mate. d. variance in female reproductive success is greater than variance in male reproductive success. e. parental care is predominantly by the father.

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Which group in the peacock butterfly experiment had the highest survival rates?

A. Those with more nocturnal habits B. Those without spots and without hissing/clicking sounds C. Those without spots but with hissing/clicking sounds D. Those with spots and hissing/clicking sounds E. Those with the same flower habitat as the birds

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