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23 Cards in this Set
- Front
- Back
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Ecology |
The branch of biology dealing with interactions among organisms and between organisms and their moment |
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Biosphere |
What is the combined portions of Earth called in which all living things exist |
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What are the 8 levels of organization? |
Molecules Cells Groups of cells Organism Population Community Ecosystem Biosphere |
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Ecosystem |
Community and its nonliving surroundings |
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Community |
Population that live together in a defined area |
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Population |
Group of organisms of one type that live in the same area |
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Organism |
Individual living thing |
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Groups of cells |
Tissues Organs Organ systems |
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Cells |
Smallest functional unit of life |
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Molecules |
Groups of atoms; smallest unit of most chemical compounds |
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What are the 6 levels of organization? |
Individual Population Community Ecosystem Biome Biosphere |
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3 ecological methods |
Observing Experimenting Modeling |
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What is the main energy source for life on Earth? |
Sunlight |
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Autotrophs (Define) |
Organism they can capture in a difference sunlight or chemicals and use it to produce its own food from inorganic compounds |
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Autotroph-> (Aka) |
Producer |
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Photosynthesis |
Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrate such as sugars in starches |
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Chemosynthesis |
Process by which some organisms such as certain bacteria use chemical energy to produce carbohydrate |
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Heterotroph (Define) |
Organisms that rely on other organisms for their energy and food supply |
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Heterotroph-> (Aka) |
Consumers |
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5 types of heterotrophs |
Herbivores Carnivores Omnivores Detritibores Decomposers |
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Energy flows through an ecosystem in _______ direction(s) |
One |
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Food chain |
A series of steps in which organisms transfer energy by eating and being eaten |
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Food web |
Something that links all the food chains in an ecosystem together |
