ecosystem notes. bell ringer p. 618 b “target your reading” 1-9 please write a if you agree with...
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Ecosystem notes
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Bell ringer
• P. 618 B “Target your reading”
• 1-9 please write A if you agree with the statements and D if you do not agree with the statements
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8/21/09 Bellringer--Ecosystem– vocab visuals – p. 731 glossary
Write all book definitions first before drawing pictures
Word Book definition picture
Biotic factor
Abiotic factor
Biosphere
Ecology
Ecosystem
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Bellringer--Ecosystem– vocab visuals – p. 731 glossaryWrite all book definitions first before drawing pictures
Word Book definition Biotic factor living parts of an ecosystemAbiotic factor nonliving parts of an ecosystemBiosphere part of Earth that supports life, including the top
portion of Earth’s crust, the atmosphere, and all the water on Earth’s surface
Ecology study of the interactions that take place among organisms and their environment
Ecosystem all the living organisms in an area, as well as the nonliving parts of their environment; community of organisms that interact with each other
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biotic
• Living parts of the ecosystem
• Also, those things that were once living
• Plants, animals, bacteria
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Abiotic
• nonliving parts of the ecosystem
• Sunlight, water, temperature, soil, air
• “A” means “not”
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“What’s in the scene?”Abiotic vs. Biotic
Make two columns and label one “abiotic” and the other one “biotic”
Examine the picture and write in each column as many abiotic and biotic factors as you can find
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Bellringer
On the coral reef ecosystem figure shown, which factor is biotic?a. rocks c. sea horse
b. sand d. water
On the coral reef ecosystem figure shown, which factor is abiotic?a. algae c. rockb. sharks d. sponges
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Bell ringer
• An aquarium of turtles can be considered a small ecosystem. Which of the following is an example of how the turtles could interact with an abiotic part of the aquarium ecosystem?
• A. turtles eat insects you place in the aquarium • B. turtles fight each other for food• C. turtles move onto rocks heated by sunlight• D. turtles pull into their shells when you startle • them
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Abiotic and biotic factors
Divide into groups
Make two lists on a piece of paper at the top abiotic and biotic
Go outside and find as many abiotic factors and biotic factors and write on the list
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Abiotic vs. biotic factors
Draw a line to divide the poster in half and label one side biotic and the other side abiotic
Cut out magazine pictures or make drawings to list different abiotic and biotic factors
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ecosystem
• Can be very small such as a pile of leaves or large such as the biosphere
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Biosphere
• Consists of all the land and water on earth as well as the atmosphere
• Largest ecosystem on earth
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Ecosystems – vocab visuals – p. 731 glossary
•
Word Definition picture
Limiting factor
Habitat
Niche
Population
community
Adaptation A variation that makes an organism better suited to its environment
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niche
• The role of an organism in its ecosystem
• What niche can a rotting log play in an ecosystem?
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Limiting factors
• Anything that can restrict the size of a populaiton, including living and nonliving features of an ecosystem, such as predators or drought
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Limiting factor activity
• Bear habitat activity
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Limiting factor activity
• Bird activity with clips, beans, corn kernels, marbles
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Bell ringer• In a meadow ecosystem, hawks feed mostly on mice.
When the mice population is small, there is less food for hawks, so the hawk population becomes smaller. When the mice population becomes smaller. When the mice population grows. The number of hawks also grows. For the hawk population, the number of mice in this meadow is an example of a
• A. Niche• B. Habitat• C. Producer• D. Limiting factor
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Community and population
• community- all the populations that live in an ecosystem
• Population-a group of the same type of organisms living in the same place at the same time
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population
• What kind of populations will you find in a forest ecosystem?
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Population
• Brain pop movie clip: “Population growth”
• http://glencoe.mcgraw-hill.com/sites/dl/free/0078778069/160350/00050757.html
• http://glencoe.mcgraw-hill.com/sites/0078778069/student_view0/brainpop_movies.html#
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Bell ringer
What was the approximate population density of the prey population in April and May? A) 8 B) 12 C) 10 D) 14 3
In which month was the prey population the lowest? A) April B) November C) February D) December
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bell ringer
• During which season did the rose insect population grow the fastest?
• A) spring B) summer C) fall D) winter
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Ecosystem video
• http://player.discoveryeducation.com/index.cfm?guidAssetId=0B666D65-13A0-46AD-9914-4C7BA106DA46&blnFromSearch=1&productcode=US
• Biology: The Science of Life: Ecology: Organisms in Their Environment
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Ecosystems video
• Brain pop video on “ecosystems’”
• http://www.brainpop.com/science/ecologyandbehavior/ecosystems/
• Video discusses ecosystems, habitats, communities, populations
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Organism_____
Population___________
Community_____________
Habitat_____________________
Ecosystem______________________
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Ecosystems- vocab visuals– glossary p. 731
Word Book definition picture
Producer
Consumer
Decomposer
Food web Overlapping food chains in an ecosystem
Energy pyramid
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Ecosystem video
• Give 3 examples of decomposers, producers, and consumers in the video
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Virtual lab-food chain
• Text virtual lab
• http://glencoe.mcgraw-hill.com/sites/0078778069/student_view0/unit6/chapter21/virtual_lab.html
Match organisms to their role in a food chain / web
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Food web
• Overlapping food chains in an ecosystem
• Remove one organism- the consumers that eat the removed organism will decrease, the organism that is eaten by the removed organism will increase
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Food web
http://www.enchantedlearning.com/subjects/foodchain/
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Food web
• Example:
• Grass mice snake hawk
Analyze the food chain above and describe what would happen if you removed one organism
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Food web
• Human food web activity in folder
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Bell ringer
To complete food chain 1 in the figure shown, you would draw an arrow from _____ to Plant.
• a. Dead Bird c. Insect• b. Hawk d. Sunlight
To complete food chain 2 in the figure shown, you would draw an arrow from _____ sunlight to Hawk.
• a. Bacteria c. Plant• b. Dead Bird d. Snake
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Bell ringer
• To complete food chain 3 in the figure shown, you would draw an arrow from Bird to _____.
• a. Bacteria c. Hawk• b. Dead Plant d. Sunlight
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In this ocean food web, which animal does not eat krill?a. fish c. squidb. plankton d. whales
In this ocean food web, which animal do whales eat?a.krill c. penguinsb.Orcas d. squid
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List the first-level consumer.
List the second-level consumers.
List the third-level consumers.
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Symbiosis• P. 45 Ecology chapter resources
• Chart with 3 mc questions
• Mutualism- both organisms benefit
• Commensalism-one organism benefits, the other is not harmed nor helped
• Parasitism-one organism benefits, the other is harmed
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web quest
• http://glencoe.mcgraw-hill.com/sites/0078778069/student_view0/unit6/webquest_projects.html
• “Barrier islands: To build or not to build”
• Students research to write a letter to the editor supporting or against barrier island development
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Bell ringer
The figure shown illustrates a _____.• a. community c. limiting factor• b. ecosystem d. population density
The biotic and abiotic factors in the figure shown share a _____.• a. community c. population• b. habitat d. shelter
In the figure shown, _____ an abiotic factor.• a. birds are c. insects are• b. flowers are d. rainfall is
Which of these factors is biotic?• a. insects c. sunlight• b. water d. soil
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Vocab. quiz
• 1. I am the nonliving part of an ecosystem
• 2. I am the living part of an ecosystem
• 3. I am any living thing.
• 4. I am organisms interacting with one another and with nonliving factors
• 5. I am the part of earth where organisms can live
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Vocab. quiz
• 1. I am the role of an organism in an ecosystem
• 2, I am the things that limit the size of a population
• 3. I am all of the populations in an area put together
• 4. I am a group of the same types of organisms
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Vocab. quiz
• 1. I am a series of overlapping food chains
• 2. I use dead organisms and the waste materials of other organisms for food
• 3. I eat other organisms
• 4. I make my own food