In Yellowstone National Park, hot springs can reach temperatures of 205°F (96°C). Despite these high temperatures, Aquifex bacteria flourish. How might you classify Aquifex bacteria?
A) slime molds
B) extremophiles
C) amoebas
D) algae
B
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Different body cells can respond differently to the same peptide hormones because _____
A) different target cells have different sets of genes B) each cell converts that hormone to a different metabolite C) a target cell's response is determined by the components of its signal transduction pathways D) the circulatory system regulates responses to hormones by routing the hormones to specific targets E) the hormone is chemically altered in different ways as it travels through the circulatory system
Temperate phages are viruses that produce prophages.
Indicate whether the statement is true or false.
A fever, stimulated by endogenous pyrogens, enhances the nonspecific immune response by
A) Stimulating leukocytes to destroy microbes B) Enhancing specific activity of the immune system C) Decreasing the amount of iron available to microbes D) All of the above
Water contamination refers only to the presence of excess or non-endemic microbes.
Answer the following statement true (T) or false (F)