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Biology Ecosystems
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Objective Organisms cooperate and compete in ecosystems
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Ecology
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The study of ecosystems
Ecology The study of ecosystems
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Ecosystems include all the interacting parts of the environment in an area.
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A niche is the sum total of an organism's use of biotic and abiotic resources in the environment, how it "fits into" an ecosystem.
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A number of different animals can live in the same biome because each occupies its own special space, or niche.
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A niche may apply to species, populations, or even individuals
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Species cannot coexist
in a community if their niches are identical.
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After years of searching Walter finally found his niche.
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Habitat The physical area in which an organism lives.
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Niche The way of life of an organism.
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Prey Predator Predator's predator Predation
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Refers to the relationship between a predator and prey.
Predator's predator Refers to the relationship between a predator and prey. Predation
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In other words, one organism using another for food.
Prey Predator Predator's predator In other words, one organism using another for food. Predation
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Carnivores Herbivores Omnivores eat only meat eat only plants
eat plants and meat
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Food Chain: The specific sequence in which organisms obtain energy within an ecosystem.
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Also called herbivores,
Primary Consumers Also called herbivores, eat only plants.
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Also called carnivores,
Secondary Consumers Also called carnivores, eat only animals.
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Tertiary Consumers eat secondary consumers.
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Food Web
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Interrelated food chains within an ecosystem.
Food Web Interrelated food chains within an ecosystem.
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Why don't humans eat carnivores?
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Spark 2 topics you feel are
Most important to slow the change of our ecosystem Most easily changed behavior.
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Kingfisher Trout Insect Larvae Algae Food Pyramid
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Indicates the trophic levels within an ecosystem Food Pyramid
Kingfisher Trout Insect Larvae Algae Food Pyramid
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Trophic is a word associated with energy. Food Pyramid Kingfisher
Trout Insect Larvae Algae Food Pyramid
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Kingfisher Trout Insect Larvae Producers 100% Algae
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All producers are able to make their own food through photosynthesis.
Kingfisher Trout Insect Larvae Producers 100% Algae
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Food stored by producers is ALL the food energy available in the
food chain. Kingfisher Trout Insect Larvae Producers 100% Algae
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Primary Consumers 10% Producers 100%
Kingfisher Trout Primary Consumers 10% Insect Larvae Producers 100% Algae
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Primary consumers feed on producers. Primary Consumers 10%
Kingfisher Trout Primary Consumers 10% Insect Larvae Producers 100% Algae
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Primary consumers use 90% of their food energy to stay alive.
Kingfisher Trout Primary Consumers 10% Insect Larvae Producers 100% Algae
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Secondary Consumers 1% Primary Consumers 10% Producers 100%
Kingfisher Secondary Consumers 1% Trout Primary Consumers 10% Insect Larvae Producers 100% Algae
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feed on primary consumers
Secondary consumers feed on primary consumers Kingfisher Secondary Consumers 1% Trout Primary Consumers 10% Insect Larvae Producers 100% Algae
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Tertiary Consumers 0.1% Secondary Consumers 1% Primary Consumers 10%
Kingfisher Secondary Consumers 1% Trout Primary Consumers 10% Insect Larvae Producers 100% Algae
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Only 10% of the energy in one trophic level is available as
Tertiary Consumers 0.1% Kingfisher Only 10% of the energy in one trophic level is available as food for the next higher level. Secondary Consumers 1% Trout Primary Consumers 10% Insect Larvae Producers 100% Algae
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ALL food chains, food webs, and food pyramids begin with producers.
Algae
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A normal food pyramid looks like this.
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Give me an example of how the pyramid could look like this.
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Protective Coloration
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Protective Coloration
Allows an organism to blend with the environment. Protective Coloration
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A prey animal looks like a dangerous, or bad tasting, animal. Mimicry
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Which one is poisonous? Mimicry
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Mimicry Scarlet Coral Kingsnake Snake
Red on black is friend of Jack. Red on yellow will kill a fellow. Mimicry
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Symbiosis is a close association between two dissimilar organisms.
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One organism benefits (parasite), the other is harmed (host).
Parasitism One organism benefits (parasite), the other is harmed (host).
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One organism benefits, the other neither benefits or is harmed.
Commensalism One organism benefits, the other neither benefits or is harmed.
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Both organisms benefit equally.
Mutualism Both organisms benefit equally.
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Mutualism is common in nature.
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