Europeans comprised more than 90 percent of immigrants to the United States during the nineteenth century, and even as recently as the early 1960s, still accounted for more than 50 percent
Indicate whether the statement is true or false.
Answer: TRUE
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Conifers have persisted since the Late Paleozoic, and now occupy this habitat:a
tropical d. deciduous forests b. high elevations and latitudes e. none of the above c. savannah
Reproductive isolation is not an accurate term to describe populations of a species that
A) is photosynthetic. B) lives in the same region as other closely related species. C) reproduces asexually. D) is able to move about freely in its environment.
A translational slide involves
A) a mudflow. B) movement of surface material along a planar (flat) surface. C) creep. D) unconsolidated flow of material. E) rotational movement of surface material.
Which of the following is associated with rising air motions in a mid-latitude cyclone?
a. shortwaves b. convergence of air at the surface c. convergence of air aloft d. divergence of air at the surface e. Rossby waves