Jeopardy
Energy
Flow
Carbon
Cycle
Nitrogen
Cycle
Phosphorous Pollution &
Cycle
Food Webs
Q $100
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Q $200
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Q $300
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Q $400
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Q $500
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Q $500
Final Jeopardy
$100 Question from H1
What are consumers and producers
and what is an example of each?
$100 Answer from H1
Producers make food energy through
photosynthesis – plants.
Consumers do not produce their own
food and must eat other organisms –
animals that eat plants & animals that
eat animals
$200 Question from H1
____________ is the process of a living thing
breaking own organic material (dead plants
and animals). Decomposers like bacteria are
responsible for this.
$200 Answer from H1
Biodegradation
$300 Question from H1
What happens to the food energy taken
in by an organism? How much energy
is transferred to the next trophic level?
$300 Answer from H1
The energy is used for cellular
respiration, growth and reproduction.
~90% of the energy is lost as heat and in
chemical reactions in the body so only
~10% of the food energy reaches the
next trophic level.
$400 Question from H1
What are the names of the 4 tropic levels we
studied in class. Give an example of an
organism in each.
$400 Answer from H1
1st trophic level – primary producers - grass
2nd trophic level – primary consumers - insect
3rd trophic level – secondary consumers - frog
4th trophic level – tertiary consumers - bird
$500 Question from H1
Describe detrivores, herbivores, carnivores
and omnivores. Give an example of each.
$500 Answer from H1
Herbivores – primary consumers that eat plants
- cow
Carnivores – secondary (or higher) consumers
that eat meat (animals) – tiger
Omnivores – consumers that eat both plants and
animals. – bear
Detrivores – consumers that eat animal wastes,
and dead plants and animals. - worms
$100 Question from H2
______________ cycles are the flow of
nutrients from different stores in biotic and
abiotic components of the ecosystem.
$100 Answer from H2
nutrient cycles
$200 Question from H2
How is carbon stored? Give an
example of a short and long term
store.
$200 Answer from H2
Short term – in plants and animals
in the ocean and on land, and in
organic matter in the soil.
Long term – coal deposits, oil and gas
deposits (fossil fuels), sediments in the
ocean and on land. (rocks and shells)
$300 Question from H2
Name 3 ways that carbon is
cycled through ecosystems
$300 Answer from H2
Photosynthesis, cellular respiration,
Decomposition, ocean currents, volcanic
eruptions and forest fires.
$400 Question from H2
What are 2 human activities that
affect the carbon cycle?
$400 Answer from H2
Industry, transportation, land clearing,
agriculture and urban expansion
$500 Question from H2
How have human activities affected
the carbon cycle?
$500 Answer from H2
The levels of carbon dioxide gas in the
atmosphere have risen 30% since the
industrial revolution. This has resulted in global
climate change and overall global warming.
$100 Question from H3
What is the largest store of nitrogen
and what is the form of the nitrogen
there?
$100 Answer from H3
The atmosphere – N2 gas
$200 Question from H3
Process which converts nitrogen gas N2
into nitrates (NO3-) or ammonium (NH4+) which
are useable by plants.
This is done mostly by nitrogen-fixing bacteria.
Lightning in the atmosphere and cyanobacteria in
the ocean also fixate nitrogen.
What is this process called?
$200 Answer from H3
nitrogen fixation.
$300 Question from H3
The process of converting ammonium (NH4+) into nitrate
(NO3-) done by nitrifying
bacteria. This is done in 2 steps by different
types of bacteria from ammonium (NH4+) to nitrite
(NO2-) to nitrate (NO3-). This process is called a)_________
Plants now take the nutrients (in the form of nitrates) from
the soil into their roots and up into the plant in a process
called b)_______________.
$300 Answer from H3
a) Nitrification
b) Uptake
$400 Question from H3
How is nitrogen returned to the atmosphere?
$400 Answer from H3
Denitrifying bacteria convert nitrates
back into nitrogen gas in a process called
denitrification.
Volcanic eruptions also return nitrogen to the
atmosphere.
$500 Question from H3
______________ is when excess nutrients cause
increased plant and algae growth which results in
algal blooms (massive green layers of algae on the
water which block sunlight, use all the oxygen and
can be toxic to fish).
This occurs from human use of chemical
fertilizers which leach into soil and surface water.
$500 Answer from H3
Eutrophication
$100 Question from H4
Where are carbon and nitrogen
stored, that phosphorous is NOT?
$100 Answer from H4
In the atmosphere.
$200 Question from H4
Where is most phosphorous stored?
$200 Answer from H4
Trapped in rocks and sediments in the ocean
floor and below surface of the Earth.
$300 Question from H4
What does ‘weathering’ of a rock mean?
$300 Answer from H4
Breaking down the rock into smaller pieces by
physical forces such as wind, rain, waves or
ice, or by chemical forces such as by the
organism called lichen.
$400 Question from H4
How does phosphorous enter into the
biotic community?
$400 Answer from H4
Uptake by plants from the
soil into their roots
$500 Question from H4
How is phosphorous cycled
from the biotic part of the
ecosystem to the abiotic part of
the ecosystem?
$500 Answer from H4
Decomposers break down dead
plants and animals, returning the
phosphorous into the soil
$100 Question from H5
The build-up of chemicals in the cells
and fat tissue of plants and animals is
called __________
$100 Answer from H5
bioaccumulation
$200 Question from H5
Salmon are an example
of this important type
of organism which has
a huge effect on many
other species within the
ecosystem
$200 Answer from H5
Keystone Species
$300 Question from H5
What process is being
shown in this diagram
which results in high
concentrations of
pollution in the higher
trophic levels?
$300 Answer from H5
biomagnification
$400 Question from H5
The use of living organisms such as plants and
bacteria to naturally clean up dangerous
chemicals in the ecosystem is called ________
$400 Answer from H5
bioremediation
$500 Question from H5
What does PPM stand for and what does
this measurement mean?
$500 Answer from H5
PPM = Parts Per Million
This can be used to measure the amount or
concentration of a pollutant in water or in an
organism.
Final Jeopardy
What is a big problem with persistent organic
pollutants (POPs) like the chemicals DDT and
PCB?
Final Jeopardy Answer
These chemicals do not biodegrade
easily. They persist in the environment
for a long period of time.
They are also harmful in many ways to
living things.