Aerobic secondary treatment is usually best for ________ wastewater
A) industrial
B) agricultural
C) residential
D) chemical
Answer: C
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During DNA replication, all of the following proteins are important for separating the DNA strands and allowing movement of the replication fork EXCEPT
A. DNA polymerase. B. helicase. C. topoisomerase. D. single-stranded binding proteins. E. both helicase and topoisomerase.
Humans have ___ symmetry and are ___
a. radial--protostomes b. radial-deuterostomes c. bilateral--deuterostomes d. bilateral-protostomes e. biradial-deuterostomes
Which type of receptor is a glycine-gated Cl- channel?
A. Adrenergic B. Ionotropic C. Muscarinic D. Nicotinic E. Metabotropic
It is possible to make a form of nitrogen that is useable by plants; however, the major drawback to this process is
A. cost of converting nitrogen to a useable form. B. getting enough nitrogen. C. it is difficult to contain the end product. D. time involved. E. temperatures must be extremely high.