Atrazine
a. is an herbicide that has been in use for more than
40 years.
b. application in the United States totals about 76
million pounds annually.
c. is used mostly to kill weeds in cornfields
d. contamination of soils and water is common in
the American Midwest.
e. fits all of these descriptions.
Answer: e
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Assemblies of macromolecules are referred to as ________ complexes.
A. metamolecular B. ultramolecular C. supramolecular D. maximolecular
In the reaction: pyruvate + CoA + NAD+ ? acetyl CoA + CO2 + NADH.
A. Pyruvate is reduced and CoA is oxidized. B. Pyruvate is oxidized and NAD+ is reduced. C. Pyruvate is reduced and NAD+ is oxidized. D. Pyruvate is oxidized and CoA is reduced.
Single-celled heterotrophic protists are commonly referred to as:
1.dinoflagellates 2.euglenoids 3.protozoans 4.diatoms
A solution having a pH of 8 is slightly acidic
__________________ Indicate whether the statement is true or false.