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Bio 150 Exam 3 Question and answers verified to pass certified 2024
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Bio 150 Exam 3 Question and answers verified to pass certified 2024
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Bio 150 Exam 3 Question and answersverified to pass (12 pgs)
Dr. Keck studies - correct answer ✔fish
5 Major: Evolution - correct answer ✔populations of organisms and their
cellular components have changed over time through both selective and non-
selective processes.
example: frog developing a noise outside the spectrum of city noise over time
to be able to communicate effectively.
5 Major: Structure and Function - correct answer ✔all living systems
(organisms, ecosystems, etc) are made of structural components, whose
arrangements determines the function of systems.
example: faster reproduction rate: small size, lower energy more offspring,
early maturity, short life span. slower reproduction rate: larger size, more
energy, less offspring, later maturity, longer life span.
5 Major: Information and Storage - correct answer ✔DNA and signals are
used and changed within and among organisms to direct their functioning.
example: butterfly developing pattern on wings mimicking a snake head
pattern which deters predators, brightly colored insects/reptiles/amphibians
are meant to tell predators that they are poisonous.
5 Major: Transformations of Matter and Energy - correct answer ✔All living
things acquire, use and release matter and energy for cellular organismal
functioning.
example: food webs, carbon/water cycle.
, 5 Major: Systems - correct answer ✔living systems are interconnected, and
interact and influence each other on multiple levels.
increased runoff into streams due to urbanization causes chemical changes in
streams which has a domino effect on species. sea otters and kelp example.
Ecology - correct answer ✔study of organisms and their environment and
how they interact.
Organismal Ecology - correct answer ✔study of individual organisms'
behavior, physiology, morphology, etc. in response to environmental changes.
It is at several scales. Questions asked: Why does it live in these areas?;
What are the resources used? Predicts: new range, invasive, reintroduction.
Example: Salmon migrate from saltwater to freshwater environments to breed.
Population Ecology - correct answer ✔dynamics of species populations and
how these populations interact with the environment -density, growth
(demographics). scale: at several scales. Questions asked: How do
populations grow? Predicts: consequences of changes to the community.
Example: Salmon produces eggs, but only few will survive to reproduce.
Ecosystem Ecology - correct answer ✔cycling of energy and matter. scale:
several scales. Questions asked: How does energy flow and how do nutrients
cycle through the local environment? Predicts: predictive in dynamic changing
systems. Ex: Food web.
Biosphere (Global) Ecology - correct answer ✔Quantifies the effects of of
human impacts on the biosphere. Scale: Questions asked: How is the
biosphere affected by global changes in nutrient cycling and climate?
Predicts: global changes.
Niche - correct answer ✔role in ecosystem.
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