BESC 201 Exam Questions Marking Scheme New Update
What is that Ecological Footprint Concept? - Answers -footprint that shows how much resources you individually consume
What is the difference between non-renewable and renewable resources and give examples - Answers -non-renewable - take almos...
BESC 201 Exam Questions Marking
Scheme New Update
What is that Ecological Footprint Concept? - Answers -footprint that shows how much
resources you individually consume
What is the difference between non-renewable and renewable resources and give
examples - Answers -non-renewable - take almost forever to reestablish; ex: fossil fuels
renewable resources - practically limitless bc they're v available; ex: wind energy
What is the definition of a semi-renewable resource and give examples. - Answers -
semi-renewable - is able to be renewed but still takes some time to do so; if not careful,
may deplete it entirely; ex: forests
What is the nature of environmental science? - Answers -environmental science -
What is the difference between environmental science, environmental studies, and
environmentalism? - Answers -Environmental science - studies relationship of world and
relationship between organisms and nature
Environmental studies - studies how humans and nature interact
environmentalism - social movement to protect the environment
What is a wicked problem? - Answers -problem that is so large there is no clear solution
and changes over time;
Define sustainability and give examples of how we can reach it - Answers -sustainability
- using our resources without compromising future generations
entailing conservation, maintaining functions of ecological system, and developing long
term solutions
Ecosystem Services - Answers -services from the ecosystem that grant resources for us
to use
provisioning - essential
cultural - recreational
Regulating - cyclical
supporting - support life
Scientific Method - Answers -Observation
Hypothesis
Make Predictions based on hypothesis
Experiment
, Analyze
Results
Photosynthesis - Answers -use of sun's energy -> food
Cellular Respiration - Answers -break down of food to release as energy
C6H12O6 (sugars) + 6O2 -> 6CO2 + 6H2O + energy
1st Law of Thermodynamics; how do they relate to the food chain - Answers -energy
cannot be created or destroyed
2nd Law of Thermodynamics; how do they relate to the food chain - Answers -energy
goes from a more ordered state to a less ordered state
What is the difference between potential and kinetic energy? - Answers -potential -
energy of position (held in place; stopped)
kinetic - energy of motion
ex: rubber band
How does energy transfer through the trophic levels? Make sure to know the difference
between the levels as well. - Answers -decreases as goes up
Know the hypoxic and anoxic conditions of photosynthesis and cellular respiration -
Answers -hypoxic: low oxygen
anoxic: no oxygen
Species - Answers -type of organism
members share certain characteristics and can breed freely with one another and
produce fertile offspring. Different biologists may have different approaches to
diagnosing species boundaries
Population - Answers -a group of organisms of the same species that live in the same
area. Species are often composed of multiple populations
Levels of Ecological Organization - Answers -Organism (species) -> Population ->
Community -> Ecosystem -> Biosphere
O. P.ls C.ome E.at B.acon
Biodiversity - Answers -The variety of life across all levels of biological organization,
including the diversity of species, their genes, their populations, and their communities
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