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Ecology Questions and Answers 100% Pass

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Ecology Questions and Answers 100% Pass Food Chain The series of steps by which energy is obtained, used, and transformed by organisms Abiotic non-living factors of an ecosystem Biotic living f... actors of an ecosystem Producer organisms that use energy the sun to obtain and store energy for themselves Consumer organisms that cannot make their own food; depend on other organisms for food Carnivore animals that only consume other animals for energy Primary Consumer organisms that make up the secondary trophic level; only eat producers, often herbivores Secondary Consumer organisms that make up the third trophic level; eat the primary consumers; may be carnivores or omnivores Tertiary Consumer organisms that make up the top trophic level; carnivores Herbivore animals that only consume plants Omnivore animals that consume both plants and animals Decomposer organisms that use other dead or decaying organisms as a source of energy; recycle matter for producers to use; critical in thecarbon cycle Scavenger organisms that obtain energy from dead organisms or from waste products of living organisms Trophic Level Position occupied by an organism in an energy pyramid of an ecosystem Autotroph term for an organism that is able to produce its own energy Heterotroph term for an organism that must consume other organisms to obtain energy Population group of the same species of organisms that share the same environment Limiting Factor limits how many members of a population can be supported (nutrients, energy, disease, and living space) Carrying Capacity Number of individuals a given environment can support community All populations that live and interact with each other in a particular place. ecosystem consists of living and non-living elements in a given area niche the role an organism or species plays in a community habitat a specific, physical location that provides all that is needed for a species to survive biosphere all the parts of the planet that are inhabited by living things; sum of all Earth's ecosystems [Show More]

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