Objections to the "stepping-stone" hypothesis, suggesting that deep-sea hydrothermal vent organisms are dispersed by taking advantage of whale falls (like stepping-stones), include all of the following except ________.
A. the number of overlapping species found at multiple sites is small
B. chemosynthetic organisms found at whale falls are not the same as at hydrothermal vents
C. most whales live and die in shallow waters
D. increasing numbers of vents found suggest that dispersal is not a problem
Answer: B
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Convection in the atmosphere
A) can be initiated by conduction at ground level. B) requires the release of latent heat. C) can only occur through adiabatic processes. D) is most prevalent in polar regions. E) is known as advection when air movement is vertical.
According to your text, a cult is defined by
A) how weird or marginal it is perceived compared to dominant religions. B) where it originated. C) who established the belief system. D) the characteristics of its gods. E) whether or not its adherents go to heaven.
Why do the eras of the Phanerozoic eon all end with "zoic"?
A) They are based on rock called zoisites. B) These names refer to life or living things; they invoke the changes in fossil organisms from one era to the next. C) "Zoic" means "time" in Latin. D) These eras were all first described near the London Zoo, so the names pay tribute to that location.
Although the earliest cities resembled villages in many ways, there were differences. List three ways early cities could be distinguished from villages