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BIOL134 Week 16 Exam 4 Ch 42-47 Walden University 2024/2025
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BIOL134 Week 16 Exam 4 Ch 42-47 Walden University 2024/2025/BIOL134 Week 16 Exam 4 Ch 42-47 Walden University 2024/2025
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Exam 4 (Ch 42-47)-Week 16Q # 1 (2.5 point)
The most recent mass extinction event observed in the fossil
record is: Q # 1 option:
End Cretaceous (K-
T) End Triassic
End
Permian
End
Devonian
Q # 2 (2.5 point)
A herd of deer stay in an area consuming the easily eaten,
highly nutritious plants. When most of those plants are gone
the deer migrate to a new location. The stimulus for migration
is:
Q # 2 option:
a seasonal change
amount of quality
food
total amount of plant
biomass the presence of
, other animals
Q # 3 (2.5 point)
, Tragedy of the commons most accurately means:
Q # 3 option:
the most common species are overharvested
common habitats are less well protected than rare
habitats sharing a resources does not work
since multiple parties share a resource there is no incentive
to conserve
Q # 4 (2.5 point)
What would you predict if scientists announced that runaway
global warming was causing the ocean to become anoxic?
Q # 4 option:
This is bad news if you eat a lot of fish, but otherwise will
not impact people very much.
This is good news, because finally people will be forced to
start cutting back on fossil fuels and overfishing.
This is very bad news, since lack of oxygen in the oceans
can suffocate marine life and collapse the food web, leading
to mass extinction.
This is bad news for large ocean animals like whales, but
should not affect most other species.
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