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