Ecology Unit
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| A single living thing. | organism
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| A collection of individuals from the same species that live in a given area. | population
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| All of the organisms a given area. | community
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| All of the living and non-living parts of a given area. | ecosystem
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| A collection of similar ecosystems with similar climate and similar dominant communities. | biome
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| Part of the planet where life exists. | biosphere
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| Non-living factors that impact organisms. | abiotic factors
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| Living factors that impact organisms. | biotic factors
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| Where an organism lives. | habitat
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| The role an organism has in its environment (where it lives and the job it has there). | niche
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| An interaction between organisms in which one organism eats or attempts to eat another organism. | predation
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| An animal that consumes another animal. | predator
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| An animal that is consumed by another animal. | prey
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| Organisms living together. | symbiosis
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| A type of symbiosis in which both species benefit. | mutualism
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| A type of symbiosis in which one species benefits and the other is neither harmed nor helped. | commensalism
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| A type of symbiosis in which one species benefits and the other is harmed. | parasitism
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| Natural or human disturbances that cause organisms in a given area to die out (or move), allowing new organisms to move-in over time. | ecological succession
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| A type of succession that occurs on barren rock/new ground (no soil existed previously). | primary succession
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| A type of succession that occurs on damaged soil (like after a fire or flood). | secondary succession
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| The first species to move into an area after a succession event. | pioneer species
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| A stable community that is formed after succession slows down. | climax community
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| The area inhabited by a population. | range or geographic distribution
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| The number of individuals per unit of area. | population density
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| How quickly a population increases or decreases in size. | growth rate
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| Movement of individuals into a population. | immigration
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| Movement of individuals out of (exiting) a population. | emigration
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| Represented by a J-shaped curve. Occurs when resources are abundant and predators/disease are at a minimum, so a population can continue growing. | exponential growth
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| Represented by an S-shaped curve. Occurs when resources are limited and predators/disease are present, thus causing the growth rate of a population to slow down. | logistic growth
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| The maximum number of individuals a given area can support. | carrying capacity
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| Something that limits the size or growth of a population. | limiting factor
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| Limiting factors that only affect large, dense populations. | density-dependent limiting factor
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| Limiting factors that affect all members of a population similarly, regardless of size and density. | density-independent limiting factor
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| The increase in concentration of toxins at higher levels of the food chain. | biomagnification
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| Organisms attempting to use the same resource at the same time. | competition
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Created by:
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