BIO 182 ASU FINAL EXAM ACTUAL EXAM
COMPLETE ACCURATE EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
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, 4/3/25, 4:19 PM BIO 182 ASU FINAL EXAM ACTUAL EXAM COMPLETE ACCURATE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS …
What is extinction? The loss or death of a species
What is mass extinction? A decline in biodiversity greater than the background extinction
rate
Background extinction occurs when certain
What is background populations are reduced to zero because of normal
extinction?
environment change, emerging disease, predation
pressure, or competition with another species
How are mass extinctions They're detected geologically, and there have been 5 detected
detected and how many
have been detected?
Pleistocene: Wooly Mammoth, Giant Short-Faced Bear,
Dire Wolf, Giant Beaver, Shasta Ground Sloth,
What organisms became
American Lion
extinct during the Pleistocene
-Could be extinct because of climate change (warmer
and Cretaceous and what are
temps), human overkill (predation), pathogens
possible causes for these Cretaceous: Dinosaurs
extinctions? -Could be extinct because of asteroid (impact hypothesis)
What is the evidence to Modern rates of extinction are 100 to 1000 time greater than the
support that there will be a background rate
6th mass extinction?
-Any unsustainable removal of wildlife from the natural
environment by use of humans
What is overexploitation? -Harvesting of organisms at rates exceeding the species ability
to replace itself
-The dominant threat to marine species
-Overhunting
Terrestrial Ecosystems: Conversion agriculture, logging,
development and urbanization
What is habitat destruction? Aquatic Ecosystems: Draining and developing wetlands, damming
rivers
Species area curve - As the land area decreases, the number of
species decreases
-The breakup of large pieces of natural habitat into small,
isolated pieces
-Can reduce a habitat to where it's too small to support a species
-Reduces the ability of individuals to disperse from one
What is habitat fragmentation? habitat to another (could be more vulnerable to
catastrophes)
-Creates a large amount of "edge" habitat (Edge effects
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