today i will study the components of an ecosystem because i need to understand how living things...
TRANSCRIPT
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• Today I will study the components of an ecosystem because I need to understand how living things depend on one another.
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Essential Question:
What would happen to an ecosystem if there were no
more bugs?S7L4
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What is Ecology?
• Ecology is the study of how living things interact with one another and with their environment.
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What is an ecosystem?
• All the living and nonliving things that interact in a particular area make up an ecosystem.
• Examples of ecosystems include: oceans, mountains, and forest
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Ecosystems:
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Organism:
• An organism obtains food, water, shelter, and other things it needs to live, grow and reproduce from its surroundings.
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Organisms:
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Habitats…..
• The place where an organism lives and provides its basic needs is its habitat.
• There can be many habitats in one ecosystem.• List at least 3 habitats that you seen outside
today.
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Habitats:
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Biotic Factors:
• Biotic factors are the living things found inside an ecosystem.• List at least 5 biotic factors found
in your environment.
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Biotic Factors:
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Abiotic Factors:
Abiotic factors are the nonliving parts of an ecosystem.
Examples include:
1. Sunlight2. Water3. Oxygen4. Temperature5. Soil
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Abiotic Factors:
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Question:
•How do biotic and abiotic factors differ?
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Species:
• A species is a group of similar organisms that can mate with each other and produce fertile offspring.
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Species:
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Populations:
• All of the members of a species in a particular area are referred to as a population.
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Populations:
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Communities:
• All the different populations that live together in an area make up a community.• Most ecosystems contain more than
one type of organism.
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Communities:
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What are the levels of organization?
• Organisms make up populations.• Populations make up communities.• And communities make up
ecosystems.
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• Our People Can Eat Bread• Organism, Population,
Community, Ecosystem, Biosphere
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Question????
•Would all the insects in a forest be considered a population?•Why or Why not?
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Limiting Factors
• Anything that restricts or controls the number of individuals in a population
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Carrying Capacity
• The largest number of individuals of one species an ecosystem can support.
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Competition
• All living things compete for– Food– Space
• Competition limits population growth.
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Closing:
• “Minute Paper” –What is the most interesting thing you learned today.
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VISTerm Definition Sentence Picture
Organism
Population
Community
Ecosystem
Biosphere