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29 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Ecology |
Branch of biology that studies the interactions between organisms and their environment |
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When and how was ecology developed? |
It was developed in the 1960s as man began to realize the profound effect of his actions on the living world. |
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Biotic |
Living factors in the environment |
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Abiotic |
Non living factors in the environment |
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Seven Abiotic Factors |
Soil, temperature, moisture/ water, light, wind, air composition, and natural disasters |
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Ecosystems |
Area where organisms interact with one another and the living and non living environment |
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Population |
A group of organisms of the same species living in an ecosystem |
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Community |
All the populations in a given area |
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Levels of organization |
Biosphere Ecosystem Community Population Organism |
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Biosphere |
The portion of Earth that supports all life |
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Habitat |
The place where an organism lives out its life |
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Niche |
The role of an organism in a community |
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Sharing niche |
Two species can NEVER share a niche |
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Symbiosis |
A close and permanent association between organisms of different species |
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Mutualism |
Both benefit |
"Mutual agreement" |
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Commensalism |
One species benefits, and the other is neither harmed or benefited |
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Commensalism |
One species benefits, and the other is neither harmed or benefited |
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Parasitism |
One organism benefits and the other is harmed, but usually not killed |
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Autotrophs |
Organisms that make their own food (self - feeder) |
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Heterotrophs |
Organisms that depended on others for nutrients (other - feeder) |
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What does autotrophs use to make food? |
Photosynthesis & chemosynthesis (50% efficient) |
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How does heterotrophs get their food? |
By consuming other organisms (10% efficient) |
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Producers |
Autotrophs that change solar energy into chemical energy in organic molecules during photosynthesis |
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Consumers |
Heterotrophs that feed on producers or other consumers |
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Herbivore |
Plant- eaters, feed only on producers |
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Carnivore |
Meat - eaters feed only on consumers |
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Omnivore |
Eat both plants and animals (producers and consumers) |
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Scavengers |
Animals that feed on other dead animals |
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Decomposers |
Organisms that break down dead organic matter (into soil) |
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