Mercury released from coal-burning power plants would be at the highest concentration in
A. the phytoplankton.
B. the zooplankton.
C. the minnows.
D. eagles that eat the walleye.
E. the walleye.
D. eagles that eat the walleye.
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Darwin's theory of evolution is supported by many modern pieces of evidence. Check all that apply.A) new measurements of the age of the earthB) an understanding of the mechanism of heredityC) human population growthD) comparative studies of animal structuresE) similarities in DNA of related species
What will be an ideal response?
Why should antibiotics not be given to a patient with Escherichia coli O157:H7?
A) Antibiotics tend to act as a hapten with this infection and are likely to cause an allergic response. B) This pathotype is part of the normal digestive tract of humans. C) This is not a bacterium, and therefore antibiotics would be ineffective. D) Antibiotics do not reduce disease and may precipitate HUS. E) This pathotype is only found in cattle and does not infect humans.
Cell markers composed of both carbohydrate and lipid molecules are known as (glycoproteins/glycolipids/glycogen).
Fill in the blank(s) with the appropriate word(s).
Which of the following microorganisms is the most commonly used indicator organism for water quality testing?
A. Escherichia coli B. Salmonella spp. C. Shigella spp. D. Campylobacter jejuni E. Hepatitis A virus