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JMU BIO 150 questions and answers verified 2024 $13.49   Add to cart

Exam (elaborations)

JMU BIO 150 questions and answers verified 2024

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  • Course
  • BIOL 150
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  • BIOL 150

JMU BIO 150 questions and answers verified 2024

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  • November 18, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIOL 150
  • BIOL 150
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LEWISSHAWN55
JMU BIO 150: Exam 1 Question and
answers rated A+ (10 pgs)
Define biodiversity - correct answer ✔the diversity of plant and animal life in
a particular habitat (or in the world as a whole)


Define genetic diversity - correct answer ✔the total genetic information
contained within all individuals of a species, population, or community


Why is genetic diversity important? - correct answer ✔provides the raw
materials for adaptive change


Define adaptive change - correct answer ✔change in response to the
environment's "natural selection:


Define species diversity - correct answer ✔the diversity of species present in
a community


Why is species diversity important? - correct answer ✔species have a
particular "role" in a system, so the addition or loss of a species may have
consequences for the entire system


How is species diversity measures? - correct answer ✔-species richness
-species abundance


Define species richness - correct answer ✔number of species in a
community

, Define species abundance - correct answer ✔The number of individuals of
each species


Define ecosystem diversity - correct answer ✔measure of the variety of biotic
components in a region along with abiotic components


Why is ecosystem diversity important? - correct answer ✔ecosystem
functioning is dependent on interacting member organisms with their
environment


Define system stability - correct answer ✔diverse systems are resilient after
and resistant to disturbances


Define ecosystem productivity - correct answer ✔diverse systems have
higher net primary productivity


Define ecosystem services - correct answer ✔direct and indirect benefits that
humans derive from organisms and ecosystems


Define existence value - correct answer ✔economic value of a system and
our willingness to mitigate biodiversity loss


What are provisioning services? - correct answer ✔raw materials (food, fuel,
fiber, medicine, genetic resources)


What are regulating services? - correct answer ✔life support system (climate
moderation, soil formation, erosion control, water capture, flood control etc.)

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