At how many degrees north and south of the equator does air rise again as a result of different temperatures in air masses that meet?
a. 10
b. 30
c. 40
d. 60
e. 75
d
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After two months, Paine repeated the sampling. In this experiment, he is sampling the
__________.
a. biodiversity b. first trophic level c. energy pyramids d. ecological niche
After years of experimentation and testing, it is possible to prove that a hypothesis is true, at which point it becomes absolute truth
Indicate whether the statement is true or false
Choose the true statement about the human genome and the tiger pufferfish genomes.
A. About 25% of human genes are unique when compared to the tiger pufferfish genome. B. Both species have about the same amount of introns and "nonsense" sequences of DNA. C. Essentially all the human genes have nearly identical counterparts in pufferfish. D. The order of genes along the chromosomes in both species is essentially identical.
The nucleoplasm has a different fluid composition than the cytoplasm of a cell.
a. true b. false