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Related Flashcards
Cards In This Set
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What is an Autotroph?
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An organism that produce their own food from inorganic substances
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What are Heterotrophs?
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Organisms that obtain their food by consuming plants and animals. They are also known as consumers.
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How many types of consumers are there?
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There are primary, secondary and tertiary consumers.
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Primary consumers
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Are herbivores (plant eaters) or Omnivores (plant and meat eaters).
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Secondary Consumers
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Are carnivores (meat eaters.) or omnivores that eat herbivores.
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Tertiary consumers
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Are carnivores that eat other carnivores or other omnivores
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Tropic Levels of an ecosystem
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Are those divisions which are made on the basis of how the organism meets their nutritional needs.
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What is the food chain?
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The path along which food is transferred from level to level.
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What is the food web?
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Is the interrelationship of many food chains.
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Decomposers (bacteria and fungi)
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Play a very important role in an ecosystem because they consume non living organic material and release inorganic material.
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Producers
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Autotrophs are essential tropic level in the ecosystem.
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What are the factors affecting an ecosystem?
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Biotic (living) and Abiotic (non living influences) eg temperature, humidity or soil composition.
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Symbiosis
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Separate species living together. Looks at the interrelationships between species.
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What are the types of symbiosis?
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Parasitic, commensalism, and mutalism
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Parasitic
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One species benefits and another is harmed. e.g. a tapeworm inside a human host.
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