The process of freeze-drying microbes to preserve them is (denaturation/desiccation/lyophilization)
What will be an ideal response?
lyophilization
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The main producers for the human food chain are ____
a. farmers b. light c. plants d. cows e. methane
Four of the following are true about water molds. Which one is the exception?
a. Water mold is responsible for the Irish potato famine. b. Some species are aquatic parasites. c. Most act as decomposers. d. Their filaments are composed of haploid cells. e. They are heterotrophs.
The DNA strands that will be together in the new
DNA molecules are a. A – D and B – C. b. A – B and C – D. c. A – C and B – D. d. A – D – B and A – D – C. e. A – B – C - D.
What kind of pathogen would retain its ability to cause infections after being treated with powerful proteolytic chemicals that would destroy all proteinaceous material?
A. A viroid B. A bacterium C. A fungus D. A virus E. A prion