BIS2B - Clicker.Questions.Lecs 25,26.Nov17,2008

BIS2B - Clicker.Questions.Lecs 25,26.Nov17,2008 - Some...

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Some Clicker questions Bis2B Fall Quarter, 2008 Lectures 25 & 26 Survivorship, life tables, life history, food webs
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Review stuff from first test • Population biology
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1.Birth rate (b), immigration rate (i), emigration rate (em) and … are the rates that contribute to population change: a.survivorship. b.death rate (d) c.Type III rates d.Infant mortality e. mutualism
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2. Open populations have: a.Birth, death, immigration, and infant mortality. b.Birth, death, mortality, and emigration. c.Birth, death, mortality, and natality. d. Birth, death, immigration, and emigration. e. Semi-log straight line survivorship.
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3. We give credit to ___________for discovering the basic logic of population growth with limits. This person had a huge influence upon Darwin’s and Wallace’s discovery of natural selection. : a. John Graunt. b. Plato. c. Aristotle. d. Malthus. e. Joseph Grinnell
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5. Malthus’s syllogism I say, that the power of population is indefinitely greater than the power in the earth to produce subsistence for man. Population, when unchecked, increases in a 1. __________ ratio. Subsistence increases only in 2.___________ ratio. A slight acquaintance with numbers will shew the immensity of the first power in comparison of the second. By that law of our nature which makes food necessary to the life of man, the effects of these two unequal powers must be kept equal. This implies a strong and constantly operating check on population from the difficulty of subsistence. This difficulty must fall somewhere and must necessarily be severely felt by a large portion of mankind.
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BIS2B - Clicker.Questions.Lecs 25,26.Nov17,2008 - Some...

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