Ecology
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each of the black spaces below before clicking
on it to display the answer.
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| Ecosystem | All the interactions and relationships of organisms with one another and with their physical environment within a certain area.
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| Omnivore | a consumer that eats both plants and animals
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| Pyramid of Energy | A pyramid shaped diagram of energy flow in a food chain.
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| Carbon Cycle | the movement of carbon atoms through an ecosystem between living organisms as well as the nonliving parts.
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| Predator | The organism that does the killing for food.
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| Scavenger | a carnivore that feeds on the bodies of dead organisms
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| Biosphere | the part of the Earth where all living things are
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| Decomposer | Organisms such as fungi and bacteria that break down the complex chemical compounds made by living things into simple nutrients that are used by food producers.
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| Herbivore | consumer that eats only plants
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| Producer | organisms, such as plants and algae, which through the process of photosynthesis create energy rich sugar.
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| Water Cycle | the continuous process by which water moves from Earth's surface to the atmosphere and back
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| Carnivore | a consumer that eats only animals
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| Consumer | an organism that obtains energy by feeding on other organisms
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| Abiotic factors | nonliving factors in an environment such as rocks, soil, water, and air
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| Biotic factors | living factors in an environment such as plants and animals
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| Limiting Factor | an environmental factor that causes a population to decrease
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| Carrying Capacity | largest population that an area can support
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| Space | often determines the amount of food and water or light that the organism needs
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| Weather | involves temperature and rainfall
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| Direct Observation | trying to count all the objects present
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| Indirect Observation | looking for evidence of the organisms
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| Sampling | Estimating by counting organisms in a small area and then multiplying to find it in a larger area
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| Population | a group of organisms of the same species living in the same ecosystem.
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| Community | living part of the ecosystem.
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| Ecology | the study of the relationships and interactions of living things with one another and their physical environment
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| Mark-and-Recapture | capture in an area, mark in a way that does not hurt them, release them, then count ones without marks
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| Birth Rate | the number of births in a population in a certain amount of time
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| Death Rate | the number of deaths in a population in a certain amount of time
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| Immigration | moving into a population
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| emigration | leaving a population
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| food chain | energy links between different organisms in an ecosystem based on feeding habits
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| food web | interconnected food chains in an ecosystem
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| adaptations | a behavior or physical characteristic that allows an organism to live succsessfully in its environment.
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| tertiary consumer | an organism that eats a secondary consumer
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| commensalism | a relationship between two species in which one species benefits and the other is neither helped nor harmed.
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| competition | the struggle between organisms to survive as they attempt to use the same limited resource
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| habitat | the place in which an organism lives
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| host | the organism that a parasite lives on or in a parasitism interaction
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| mutualism | a relationship between two species in which both species benefit
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| natural selection | a process by which characteristics that make an individual better suited to its environment become more common in a species
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| niche | the special role of an organism in its community or environment
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| nutrient | a simple chemical compound used to nourish living things ;the usable part of food.
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| organism | a living thing
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| parasite | an organism that benefits by living on or in a host in a parasitism interaction
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| parasitism | a relationship in which one organism lives on or in a host and harms it
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| photosynthesis | a chemical reaction in which carbon dioxide and water are combined inside the leaf in the presence of sunlight to form energy rich sugar
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| species | very similar organisms that can produce fertile offspring
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| population density | the number of individuals in a specific area
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| primary consumer | an organism that eats producers
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| secondary consumer | an organism that eats primary consumers
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| prey | an organism that is killed and eaten by another organism
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| symbiosis | a close relationship between species that benefits atleast one of the species
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| primary consumer | an organism that eats producers
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| secondary consumer |
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Created by:
kimmiller
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