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100 200 300 400 500 FINAL Populations Climate Resources Ecosystems
Grab Bag o’ Everything 100 200 300 400 500
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What does this graph show?
Populations 100 What does this graph show? Category
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Exponential growth – runaway expansion of the population!
Populations 100 Exponential growth – runaway expansion of the population!
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The number of organisms that the ecosystem can support.
Populations 200 The number of organisms that the ecosystem can support. Category
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The number of organisms that the ecosystem can support.
Populations 200 Carrying Capacity: The number of organisms that the ecosystem can support.
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Populations 300 Give two examples of limits to population growth that limit all populations regardless of size. What are these factors called?
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Density Independent Factor:
Populations 300 Density Independent Factor: factors that limit pop. growth of ALL populations regardless of size: meteorite impacts, earthquakes, volcanoes, storms, pollution…
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What does this age structure diagram tell you about this population?
Populations 400 What does this age structure diagram tell you about this population?
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Populations 400 That there are not enough young people to easily care for their elderly population
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Why does higher biodiversity lead to more stable ecosystems?
Populations 500 Why does higher biodiversity lead to more stable ecosystems?
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Populations 500 The greater the biodiversity means more genetic (DNA) material which increases chances of disease resistance or other ecosystem disruption.
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Climate 100 What are normals?
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Standard values for a location, averaged over 30 years.
Climate 100 Standard values for a location, averaged over 30 years.
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Would normals best predict weather or climate?
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Weather conditions on any given day might differ widely from normals.
Climate 200 Climate. Weather conditions on any given day might differ widely from normals.
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Climate 300 Latitude, topographic effects, and air masses are three of the top conditions used to determine what?
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Climate 300 Climate!
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Climate 400 What factors are used to classify biomes in the Koeppen classification system?
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Climate 400 Temperature, precipitation, and vegetation.
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What factors might cause a microclimate to develop?
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Climate 500 Microclimate causes Bodies of water
Slope or side of house facing sun/away from sun Heat island
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What are renewable resources? Give two examples.
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Resources 100 Renewable resources:
Natural resources that are possible to use indefinitely without causing a reduction in the available supply: Air, soil, water, nitrogen, carbon, solar energy (inexhaustible supply).
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What is sustainable yield?
Resources 200 What is sustainable yield?
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(fishing – not exceeding the growth of new ones)
Resources 200 Sustainable yield: The use of renewable resources within the rate they can be replaced naturally (fishing – not exceeding the growth of new ones)
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Resources 300 Diamonds, uranium, fossil fuels, copper and gold are an example of what kind of resource?
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Nonrenewable resource:
Resources 300 Nonrenewable resource: a resource that exists in a fixed amount and can be replaced only by geological, physical, and chemical processes that take hundreds of millions of years!
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Where did oxygen originate?
Resources 400 Where did oxygen originate?
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Beginning Earth’s atmosphere was CO2, Nitrogen and H20.
Resources 400 Beginning Earth’s atmosphere was CO2, Nitrogen and H20. Early ocean organisms used CO2 for photosynthesis, releasing O2 for the rest of us! Go Cyanobacteria!
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Why is water such an important resource?
Resources 500 Why is water such an important resource?
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Organisms are mostly water
Resources 500 Organisms are mostly water High heat-storage capacity – protects from abrupt heat changes Dissolves many compounds (solvent) Ice is less dense that liquid - floats
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Ecosystems 100 What is the region of Earth that encompasses all living organisms: plants, animals and bacteria?
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Biosphere is the region of Earth encompasses all living organisms.
Ecosystems 100 Biosphere is the region of Earth encompasses all living organisms.
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What is an invasive species?
Ecosystems 200 What is an invasive species? Give an example.
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Introduced species that harm existing ecosystems
Invasive species: Introduced species that harm existing ecosystems Fire ants, kudzu, boa constrictors
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List two benefits of traditional agriculture
Ecosystems 300 List two benefits of traditional agriculture
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Benefits of traditional agriculture:
Ecosystems 300 Benefits of traditional agriculture: Year-round fruits and vegetables Cheap food High food supply
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List two characteristics of sustainable agriculture
Ecosystems 400 List two characteristics of sustainable agriculture
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Sustainable Agriculture:
Ecosystems 400 Sustainable Agriculture: Recycling crop waste and livestock manure Crop rotation using crops with nitrogen-fixing bacteria instead of nitrogen fertilizer Genetically engineering crops to fix nitrogen Use of locally adapted crop and livestock No-till farming to reduce soil erosion
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What is one advantage of no-till farming?
Ecosystems 500 What is one advantage of no-till farming?
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Ecosystems 500 No-till farming disturbs the soil much less than traditional tilling. This results in: Much less soil erosion Increased water retention
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The retention of heat by the atmosphere is
Grab Bag 100 The retention of heat by the atmosphere is
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the retention of heat by the atmosphere
Grab Bag 100 Greenhouse Effect: the retention of heat by the atmosphere
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Grab Bag 200 What is “global warming?”
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the rise in global temperatures
Grab Bag 200 Global Warming: the rise in global temperatures
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Grab Bag 300 The process where productive land becomes desert through the loss of topsoil
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Grab Bag 300 Desertification: The process where productive land becomes desert through the loss of topsoil
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List two short term climate change agents
Grab Bag 400 List two short term climate change agents
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Grab Bag 400 Seasons – Earth’s tilt El Nino/La Nina
Solar Activity – sunspots Volcanic Activity Earth’s Orbit – 100,000 yr cycle Earth’s Wobble – 26,000 yr cycle
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How many years can it take to form just a few centimeters of topsoil?
Grab Bag 500 How many years can it take to form just a few centimeters of topsoil? (p. 659)
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Grab Bag 500 1000 years! But in can be lost within minutes of a storm through erosion! Protect it!!
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Final Jeopardy Write down a wager List two abiotic factors
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Final Jeopardy Abiotic: Non-living chemical and physical factors in the environment which affect ecosystems Climate: sunlight, temperature, wind & precipitation Topography: latitude, altitude, slope Atmosphere: oxygen, air pollution Soil: texture, pH, water, salinity
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