The microbial oxygen-consuming capacity of a water sample is called its
A) chemical oxygen demand.
B) biochemical capacity.
C) biochemical oxygen demand.
D) chemical capacity.
Answer: C
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Why are telomeres a necessary component of linear chromosomes?
A. They direct where DNA synthesis will begin. B. They fix mistakes that are made during DNA replication. C. They extend the life of cells because DNA is shortened every time it is replicated. D. They direct where DNA synthesis will end. E. None of the answer options are correct.
What data or test would you seek to determine whether or not a trait is sex linked?
A) karyotype B) pedigree C) DNA sequence D) blood test
?
Figure 33.8
Use the accompanying figure to answer the following question.
What letter indicates a taste bud?
A. A B. B C. C D. A and B E. None of these, because they are olfactory receptors
The only helminth disease of humans spread by an insect vector is
A) ascariasis. B) fascioliasis. C) filariasis. D) hydatid disease. E) schistosomiasis.