Part of 2A:
Levels of Organization in the biosphere:
label: http://youtu.be/srbuqpr6jUw
Biosphere, Biome, Ecosystem, Community, Population, Individual
Environment: all conditions or factors surrounding an organism
http://youtu.be/E1pp_7-yTN4
Biotic Factors
_________________________________________________________________
examples include:
1. ___________________________________
2. ___________________________________
3. ___________________________________
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Abiotic Factors
_________________________________________________________________
examples include:
1. ___________________________________
2. ___________________________________
3. ___________________________________
Energy, Producers, and Consumers
Examples of: http://youtu.be/GnffYkN1UDk
1. Herbivores: organisms that obtain energy by eating plant leaves, roots, seeds,
and or fruits
Example of Herbivores:
________________________________________________
2. Carnivores: organisms that obtain energy by eating animals
Example of Carnivores:________________________________________________
3. Omnivores: http://youtu.be/pPQjI22vV2w
organisms that obtain energy by eating both plants and animals
Example of Omnivores: : _____________________________________________
4. Decomposers: http://youtu.be/dEq5-FbCYjo
organisms that break down and obtain energy from dead organic matter
Example of Decomposers: ____________________________________________
5.Detritivores (although movie calls it decomposers) http://youtu.be/Z6V0a_7N1Mw
organisms that feed on detritus which are the small pieces of dead
and decaying plant and animal remains
Example of Detritivores: ____ earthworms, snails, shrimp, mites, crabs
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6. Scavengers: animals that consume the carcasses of other animals
Example of Scavengers: _____ vulture, hyena ___________
http://youtu.be/v6ubvEJ3KGM
Temporarily stop the video at 4:58 and label the trophic levels in the food chain.
Then finish the video and fill in this page.
Food chain: a series of steps in an ecosystem in which
organisms transfer energy by eating and being eaten
Example of a Food Chain
Use the picture below to construct a 4-step food chain below:
1st TL

2nd TL 
3rd TL 
4th TL
Trophic level (TL): each step in a food chain or a food web
producer___  1st order Consumer  _______________  __________________
algae
 _________________
 _________________
 ______________
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Food Web: network of complex interactions formed by the feeding relationships
among the various organisms in an ecosystem; a food web can also be defined as a series
of interconnected food chains in an ecosystem.
Therefore studying a food web may be more appropriate when trying to
understand the flow of energy and materials in a complex ecosystem
Some might make an analogy of decomposers being like earth's "recycling center".
Summarize the importance of decomposers and detritivores in food webs
. http://youtu.be/cf1-CMXZaX8 and http://youtu.be/0za-cBeXw9s
Define: http://youtu.be/1uPESFeQda4
Habitat: _____________________________________________________
_____________________________________________________________
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Biomes are described in terms of abiotic factors like climate and soil type,
and biotic factors like plant and animal life.
Watch the videos and fill in the table on the final 2 pages
Tundra:
http://www.youtube.com/watch?v=orPgEvVab2M
taiga:
http://www.youtube.com/watch?v=h4tQ5jGJ9cQ
Biomes of the world:
http://www.youtube.com/watch?v=P22epOXwJHg
wetland s
http://www.youtube.com/watch?v=ft_2nj96jLM
bill nye wetlands
http://www.youtube.com/watch?v=BeUPbGWg2KU
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Biome
Details & Climate
(abiotic factors)
Type of Plants
(biotic factors)
Types of Animals
(biotic factors)
Tropical Rain Forest
Tropical Dry Forest
Tropical Grassland/
Savanna/Shrubland
Desert
Temperate Grassland
Temperate Woodland
And Shrubland
Temperate Forest
(Deciduous Forest)
Northwestern
Coniferous Forest
(aka Temperate Rain
Forest)
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Boreal Forest (Taiga)
“boreal” from the
Greek meaning
northern
Tundra
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