Discuss large mammals of the Pleistocene. What will be an ideal response?
During the Pleistocene, temperatures were considerably colder than today. Some mammals
developed larger sizes in order to lower the ratio of surface area to volume. This decreased
surface area to volume ratio allowed more of the heat that the animal generated to be retained.
Many of these mammals also developed a thick insulating layer of fur to further help retain
internal heat.
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Which of these features is typical of soils in temperate environments?
A) Excessive eluviation B) Relatively immobile nutrients C) Retention of nutrients within the crop root zone D) Excessive splash erosion
The three major rock groups are ___________________, ___________________, and ___________________. Fill in the blank(s) with the appropriate word(s)
What percentage of Earth's surface is covered with water?
A) 42% B) 70% C) 80% D) 23% E) 56%
Which of the preserve shapes shown is the worst shape for a species that requires a core area?
A. A B. B C. C D. D E. All of the shapes have about the same measurements