Humans are a(n) ________-based life form
A) oxygen B) carbon C) hydrogen D) nitrogen E) phosphorus
Answer: B
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The gradual accumulation of minor changes that bring about a transition from one species to
another is a process called ____________. Fill in the blank(s) with the appropriate word(s).
Which of the following would cause a negative forcing?
A) An increase in the burning of fossil fuels, leading to an increase in greenhouse gases in the atmosphere B) A large volcanic eruption spewing ash high into the atmosphere, blocking sunlight around the world for years until the ash cloud slowly dissipates C) Snow-covered ice sheets in Greenland melting and revealing bare rock D) All of these scenarios would cause a negative forcing.
Which of the following are needed to convert fructose 1-phosphate to fructose 1,6-bisphosphate?
A) only phosphofructokinase B) only phosphofructokinase and Mg2+ C) phosphofructokinase, ADP, and Mg2+ D) phosphofructokinase, ATP, and Mg2+
Maritime polar air masses develop in central Canada
a. True b. False Indicate whether the statement is true or false