ECOl 182R FINAL EXAM QUESTIONS WITH CORRECT ANSWERS

ECOl 182R FINAL EXAM QUESTIONS WITH
CORRECT ANSWERS


All tetrapods share ancestral ________ fish as a common ancestor
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a) Neopterygii
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b) Chondrosteans
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c) Chondrichthyes
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d) Sarcopterygii
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e) Actinopterygii - CORRECT ANSWER✔✔-d. sarcopterygii
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Let's say there are three hypothetical phylogenetic trees for the phylogeny of
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humans, dogs, and lizards. One tree assumes there are 10 mutations, the other
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tree assumes there are 12 mutations, and the last tree assumes there are only 9
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mutations. Given this information, how would you determine which tree is most
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parsimonious?
a) Of competing hypotheses, the one with the most assumptions is correct
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b) The tree with the least number of steps is most likely the correct tree
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c) None of these trees are more or less
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parsimonious than the next - CORRECT ANSWER✔✔-b. The tree with the least
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number of steps is most likely the correct tree
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Natural Selection works at the level of the ____, whereas evolution shows
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changes at the ____ level | | | |




a) Population, Individual
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,b) Individual, Population
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c) Gene pools, Population
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d) Community, Population - CORRECT ANSWER✔✔-b. individual, population
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Flight has independently evolved 4 times (insects, birds, pterosaurs, and
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mammals) in the history of life on earth. What is flight an example of?
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a) Convergent Evolution
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b) Mimicry
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c) Natural Selection
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d) Coevolution - CORRECT ANSWER✔✔-a. convergent evolution
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Which is NOT a protostome?
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a) Arthropoda
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b) Tardigrada
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c) Onychophora
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d) Echinodermata - CORRECT ANSWER✔✔-d. echinodermata
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all the organisms that inhabit Zion national park are considered a(n) ______.
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a) Ecosystem
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b) Population
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c) Community
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d) Biosphere - CORRECT ANSWER✔✔-c. community
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Which of the following are directly correlated to food caching?
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,a) Storing during times of plenty for times of depletion
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b) Used by animals too small to migrate to different locations
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c) .Found in animals that live in seasonal habitats
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d) All of the above - CORRECT ANSWER✔✔-d. all of the above
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Prairie dogs display behaviors to communicate with one another, such as tail
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flagging when snakes are present. Based on this behavior, what could you infer
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about their evolutionary history?
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a) Snakes common during evolution
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b) Snakes uncommon during evolution
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c) No difference - CORRECT ANSWER✔✔-a. snakes common during evolution
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Which of the following is a characteristic of R-selected individuals?
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a) Slow development
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b) Late reproduction
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c) Many, small offspring
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d) Few, large offspring - CORRECT ANSWER✔✔-c. many, small offspring
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Ecology is the study of relationships between organisms and their _____?
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a) Physiology
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b) Environment
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c) Evolution
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d) Adaptations - CORRECT ANSWER✔✔-b. environment
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, Evidence indicates that the first animal was domesticated 15,000 years ago; this
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animal would eventually become today's ______.
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a) Wolves
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b) Cattle
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c) Dogs
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d) Horses - CORRECT ANSWER✔✔-c. dogs
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What is it called when herbivores, like rabbits, prevent loss of cecal digestive
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nutrients by reingesting feces?
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a) Myrmecophagy
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b) Microphagy
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c) Pellet opportunists
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d) Coprophagy
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e) None of the above - CORRECT ANSWER✔✔-d. coprophagy
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During the late Triassic period, the common ancestor of early mammals gave rise
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to descendants that eventually evolved highly specialized feeding adaptations.
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What mode of feeding would you expect early "primitive" (basal) mammals to
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possess?
a) Granivores
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b) Insectivores and
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Granivores
c) Insectivores
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d) Folivores
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e) None of the above - CORRECT ANSWER✔✔-c. insectivores
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