The early vertebrates differed from the earlier nonvertebrate chordates in possessing a:
A. four-chambered heart
B. diaphragm
C. vertebral column
D. all of these
C. vertebral column
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The physical strength hypothesis probably accounts for which of these male-specific tasks?
a. Clearing land and preparing soil b. Trapping and butchering c. Gathering fuel and fetching water d. Making pottery
The Y chromosome
a. is found in both sexes, males have two, females have one. b. influences numerous characteristics in addition to sex determination. c. can be inherited form either parent. d. carries genes that cause the fetus to develop as a male. e. causes a fetus to develop as female if there are two present.
The elites of archaic states restricted access to sumptuary goods.
Answer the following statement true (T) or false (F)
You are the owner of a restaurant located in a beach resort in Hawaii and want to use regression analysis to estimate the demand for your fresh seafood dinners. You have collected data on the daily quantity of seafood dinners sold over the last summer season. In order to correctly specify your regression equation, all of the following variables should be considered except which one?
A) the different prices you charged for your seafood dinners B) the amount spent of advertising your seafood dinners C) the prices charged for souvenirs in local stores D) the prices a competing seafood restaurant charged for their dinners