Captive studies __________
a. involve very large enclosures or even small islands
b. are conducted in the habitat in which the species evolved
c. allow for behavioral experiments to be conducted
d. are extremely unethical and illegal
Correct Answer: c
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The ABO and MN blood-type frequencies of the Dunkers differ significantly from those of current American and German populations due to:
a. genetic drift. b. natural selection. c. gene flow. d. mutation.
Why do differences in skin pigmentation exist around the world? What adaptive advantages do different skin colors confer?
What will be an ideal response?
An Archaeological ProblemThe following multiple-choice questions refer to the paragraph below. Base your answers on the information given below, your archaeological knowledge, and common sense.Recent excavations in the Levant have uncovered a small settlement of approximately twenty houses. These structures were circular in shape and had rock-wall foundations. A number of burials were found in a small cemetery adjacent to the settlement. Storage pits and roasting areas for preparing plant foods also were found, but there was no evidence for domesticated plants at the site. Animal bones from deer, gazelle, sheep, and goat were common at the site. The investigators noticed that a high number of young male animals were represented in the sheep bones. This difference was not noted among the
bones of the other species. Other materials from the site included sickle blades, bone tools, charcoal, and grinding slabs.A study of the bones of gazelles, goats, and sheep at Abu Hureyra revealed that: A. only goats were domesticated. B. goats and sheep were domesticated around 7500 B.C. C. wild gazelles were transformed into domesticated goats. D. sheep were domesticated about 1000 years prior to goats. E. (C) and (D) above.
Smallpox was originally acquired from ______________ (which animal?)
Fill in the blank(s) with correct word