In early spring 2009, the CDC reported several dozen cases of novel H1N1 influenza ("swine flu") in the United States. By the end of the year millions of people had been infected. The pattern of novel H1N1 cases in the United States represents a(n) ________ disease.
A. epidemic
B. endemic
C. sporadic
D. pandemic
E. opportunistic
Answer: A
Biology & Microbiology
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The central nervous system is lacking in animals that have _____
A) a complete gut B) bilateral symmetry C) radial symmetry D) a closed circulatory system E) excitable membranes
Biology & Microbiology
Two amino acids that are found in some proteins due to exceptions in the universal genetic code are
A. lysine and selenocysteine. B. pyrrolysine and cysteine. C. lysine and cysteine. D. pyrrolysine and selenocysteine.
Biology & Microbiology
Most fungi secure their nutrients from dead organic matter and are therefore called ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Kinetochore microtubules extend between the spindle poles
a. True b. False
Biology & Microbiology