Exam (elaborations)
BIO 182 EXAM 3 questions well answered to pass
- Course
- BIO 182
- Institution
- Arizona State University
BIO 182 EXAM 3 questions well answered to pass
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BIO 182 EXAM 3 questions wellanswered to pass
True or False
The greatest density of species occurs at the North Pole. - correct answer ✔✔False
What is the tragedy of the commons? - correct answer ✔✔the tendency for a common resource to be
overused
True or false: cheating ( free riding) confers the smallest benefit when most of the group cooperate to
invest? - correct answer ✔✔False. when more ppl invest, there is a higher benefit for the freeloaders
true or false: punishment creates a cost that balances the benefit of selfishness - correct answer
✔✔True
how can we promote a cooperation on a larger scale - correct answer ✔✔rebates( benefits) for
participants
punishment for non-participants
what are 3 strategies for when species numbers are getting low - correct answer ✔✔Captive breeding
DNA banks
protection
Extinction due to 3 human activities - correct answer ✔✔hunting, habitat destruction, global warming
True or False: if productivity enhances diversity, one should see more species in deep tropical waters
than along shallow coastlines - correct answer ✔✔false we see more productivity in deep tropical
waters, BUT we predict that shallow coastlines should rather have it
,true or false: Primary productivity is likely necessary, but insufficient condition for biodiversity - correct
answer ✔✔true
true or false: greater productivity could support more individuals of a species without supporting more
species - correct answer ✔✔true. just b/c you have a huge amount of primary productivity does not
mean it would give more amount of species. it could simply have more individuals from the same species
More productivity = more organisms, but it is not equal to________ - correct answer ✔✔more species
why is the more speciation at the equator - correct answer ✔✔temperatures are stable= more
specialized organisms
no change in temperatures in high or low altitude
increased cost to dispersal over a climate gradient=> low gene flow=> high alopatric speciation=>
___________ - correct answer ✔✔very sensitive to climate changes
you have to be a _______ to survive changes - correct answer ✔✔generalist ( BUT species in tropics are
specialists)
Low Latitiudes= _________thermal niches
High Latitudes= __________thermal niches - correct answer ✔✔narrow
broad
true or false: a more specialized species should occur over a narrow range of altitude or latitude - correct
answer ✔✔true for both altitude and latitude
primary consumers - correct answer ✔✔first organisms in the chain to eat the other organisms
eat the photosynthetic organisms = herbivores
Tropical species have the _______ latitudional ranges
Species at high latitudes have the _______ latitudional ranges - correct answer ✔✔lowest
, highest
greenhouse effect - correct answer ✔✔warming/heat that results when solar radiation is trapped by the
atmosphere
what is anthropogenic - correct answer ✔✔caused by humans
the rate of global warming appears to be accelerated in the _____ ( consequences) - correct answer
✔✔arctic ( ice melting, island and species disappearance, overabundance of salt water, shortage of fresh
water )
what type of niches are used to predict responses to climate change ( climate envelope model) - correct
answer ✔✔realized ( fundamental would be better)
true / false:
in the experiment with water fleas, the phenotypic difference between the two sets of population could
have resulted from plasticity instead of evolution - correct answer ✔✔false, b/c it was several generation
further and not within one generation.
what 7 factors determine whether a species can adapt to an environmental change - correct answer
✔✔1) high recombination ( sexual reproduction)
2) niche width ( intermediate)
3) rate of warming ( low)
4) population size ( large)
5) net immigration ( high)
6) generation time (low)
7) mutation rate ( high)
Adaptation to climate change will depend on factors that influence what 4 factors - correct answer
✔✔mutation
selection
migration
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