Why can jams and honey be stored at room temperature for long periods of time?
The pH of these foods is not conducive to bacterial growth.
Most human pathogens cannot grow at room temperature.
The high sugar content causes plasmolysis of bacterial cells.
The use of UV light prior to marketing reduced the microbial load.
The high sugar content causes plasmolysis of bacterial cells.
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Which reaction represents cellular respiration?
A. Sugar + Oxygen ? Carbon dioxide+ Water + ATP B. Water + ATP ? Carbon dioxide + Sugar C. Carbon dioxide + Water + ATP ? Sugar + Oxygen D. Oxygen + Carbon dioxide ? Sugar + Water + ATP
Suppose that an equal amount of each of the following polysaccharides was placed in a landfill. Which
of them should last the longest before it is decomposed?
a. chitin b. amylopectin c. cellulose d. glycogen e. amylose
In his comprehensive theory, Steve Hubbell assumes that all species are competitively equivalent and that they have identical fitnesses— their probabilities of death and reproduction are the same. How do we characterize such species (and, indeed, Hubbell's theory)?
A) polarized B) neutral C) niche-differentiated D) complementary
Connective tissues include lymph, ligaments, tendons, and
A) cardiac muscle. B) skin cells. C) cartilage. D) vessel linings. E) exocrine glands.