Ecosystems

Ecosystems
Populations
Cycles
Human
Impact
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Sustainability
The original source of energy for all
ecosytems
What is the Sun?
A diagram showing the flow of
energy through an ecosystem
What is a food web?
All species that live in an area.
What is a community?
The amount of energy lost at each
link in a food chain.
What is 90%?
Organisms that consume producers
and consumers.
What are omnivores?
These structures, most famous in the
Egyptian desert, can be used to
represent populations.
What are pyramids?
Organisms within a given population
will enter into this for food and
partners.
What is competition?
The maximum population that a
given area can sustain is referred to
as this.
What is the carrying capacity?
Daily
Double
The two types of competition.
What are interspecific and
intraspecific?
A hurricane is an example of a
population limiting event of this
kind.
What is density independent?
The two cycles studied in this unit.
What are nitrogen and carbon?
Carbon dioxide is absorbed from the
atmosphere in plants and
transformed into this carbon
containing molecule.
What is glucose?
These bacteria, often found in root
nodules are sources of nitrogen for
the plants they are attached to.
What are nitrogen fixing bacteria?
The Earth is this type of system.
What is closed?
Most of the petroleum reserves result
from carbon deposits of this era.
What is the carboniferous period?
The result of excess CO2 in the
atmosphere.
What is global warming?
The effect of nitrogen overload in
the atmosphere.
What is acid rain?
The effect of nitrogen overload in an
aquatic ecosystem.
What is an algal bloom or
eutrophication?
An area used to examine a portion of
an ecosystem.
What is a transect?
The impact of human activities has
an effect on the variety of species or
the ‘this’ on Earth?
What is biodiversity?
This is a calculation of how much
surface area is needed to support the
habits and activities of individuals.
What is the ecological footprint?
This is a driving force behind
decision made effecting the
environment.
What is the economy?
An accord signed by many countries
in an attempt to reduce CO2 and
other greenhouse gas emissions.
What is the Kyoto Accord?
Daily
Double
Name Canada’s current minister of
the Environment.
Who is The Honourable Rona
Ambrose?
The country with the largest
ecological footprint.
What is the United States?