Ecology Review
Contestants
Don’t
Forget...
…Always phrase
your answers in
the form of a
question!
Remember to work as a
team!
Category 1
Category
II
Category
III
100
100
100
100
100
200
200
200
200
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300
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300
300
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400
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500
500
500
500
500
Category Category
IV
V
Food Web for $100
You have a food web with bushes eaten by
deer and deer eaten by mountain lions. What
type of organism is responsible for recycling
matter back into the soil?
What is…?
Decomposers
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Food Webs for $200
Explain how energy is
transferred from a plant to a
butterfly. Include the amount of
energy available at each level
What is..?
Energy is transferred from the
plant to the butterfly with less
energy being available to the
butterfly
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Food Web for $300
• If you have a food web with mice and
hawks and you remove some of the mice,
what happens to the numbers of hawks in
the population?
What is?
• The number of hawks decreases in size
Pyramids
This type of pyramid deals with
the mass of the organism
What is…?
Biomass pyramid
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Symbiosis
This type of symbiosis occurs
when one organism benefits and
one organism is harmed.
What is …?
Parasitism
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Miscellaneous
What happens to the carbon
cycle when there is a lot of
development. Ex: cutting down
trees and plants
What is…?
There will be more
carbon dioxide and
global climate change
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Breathe In and Out
This chemical is put into
the atmosphere by
volcanoes and consumers
What is…?
Carbon Dioxide
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Breathe
Which chemical is released
from cows during respiration
What is…?
What is ?
• Carbon Dioxide
Symbiosis for $300
This type of symbiosis
occurs when both species
benefit
What is..?
Mutualism
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Carbon dioxide
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Pyramids
In an energy pyramid,
which group has the most
available energy?
What is…?
producers
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Respiration occurs in which of
the following?
Cats, fruit trees, rabbits
What is…?
cats, trees, rabbits
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What’s the last organism in a
food web energy transfer?
What is…?
Decomposers, bacteria, fungi
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Double the Money!!! Woohoo!
Why are elements such as
carbon not removed from
the biosphere?
What is…?
Because they are
recycled
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What would happen to the
process of photosynthesis if
producers were removed?
What is…?
There would be a
decrease in energy
produced in the
ecosystem
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Trophic Levels
At the first trophic level
there are 6,000 kcal/yr
burned. How much energy
is burned at the third
level?
What is…?
60 kcal/year
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How is atmospheric nitrogen
converted so that animals can
use it?
What is…?
By bacteria in the
soil
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What type of symbiosis is it?
This type occurs when one
organism benefits but there
is no benefit or harm to the
other organism
What is…?
commensalism
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Competitive Exclusion Principle
This principle states
that no 2 species
shall….
What is…?
Occupy the same
niche
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Competition
You want to test the effect of competition
within one particular species of snails. How
would you set up an aquarium to test this?
(Hint: food and snails)
What is…?
Set up one aquarium
with a number of
snails and less food
than they need to
eat.
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In an ecosystem a pyramid of
numbers measures what?
AND>>>…… what trophic level
are the smallest number of
organisms found?
What is…?
Gives the number of
organisms in the
ecosystem,
Found at the top trophic
level
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Why is the smallest number of
organisms found at the top
trophic level?
What is…?
There is less
energy available
Doofus!
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Factors or nutrients that can
affect the size of a population,
Hint: May also cause algae
blooms
What is…?
What is a limiting
factor?
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This nutrient is found mostly in
rock/soil
What is…?
phosphorus
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How is carbon recycled
back into the soil and
water?
What is…?
decomposers
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What is this
chemical
C6H12O6?
What is…?
Glucose/sugar
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Misc for $500
What is the name of
this chemical NH4?
What is…?
ammonia
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