In which general direction do the prevailing winds blow between 30° North and the equator?
A) from south to north
B) from east to west
C) from north to south
D) from southwest to northeast
C
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All of the following are critical factors for DNA replication on the leading strand except?
A. primer. B. DNA ligase. C. DNA polymerase. D. DNA primase. E. deoxynucleoside triphosphates.
Which greenhouse gas is released by bacteria engaged in anaerobic metabolism?
a. nitrous oxide b. carbon dioxide c. methane d. ozone
Which sigma factor, encoded by the rpoH gene, is active at high temperatures?
A) ?70 B) ?32 C) ?45 D) ?37 E) ?50
In principle, why are t-statistics and critical values not as useful in the practical construction of confidence intervals in most applications?
A. In large samples (i.e., large degrees of freedom) the t-distribution and standard normal distribution are very similar. B. Their use is only valid in small samples. C. Their use is only valid in large samples. D. They are not often found in most software applications.