DNA phylogenies revealed ________ major branches, or groups of organisms, two of which were types of ________.
Fill in the blank(s) with the appropriate word(s).
Answer: three, bacteria
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The shaded areas and diffusion arrows on the above world map indicate the most prominent regions of the
A) first agricultural revolution. B) second agricultural revolution. C) third agricultural revolution. D) Green Revolution. E) Industrial Revolution.
Which of the following segments best illustrates the end of a midlatitude cyclones occlusion process?
A) F-E
B) D-C
C) B-A
Why is there special concern about timber firms in Japan and China purchasing logs from North American conifer forests?
A) Japan gets a discount on the logs. B) Japan does not hire U.S. workers to cut the trees. C) These trees are often cut from public forests in the U.S. D) At this time, the U.S. and Japan are involved in a larger trade dispute. E) All of the other answers are correct.
An approaching wave cyclone would be indicated by a ________ barometer reading
A) high B) variable, rising then falling C) slowly rising D) very low E) rapidly falling