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28 Cards in this Set
- Front
- Back
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What is the difference between biotic and abiotic?
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Biotic: All the plants, animals, algae, fungi and microbes in an ecosystem (All living things)
Abiotic: The chemical and physical factors in an ecosystem (non living) for example: Temperature, moisture, salinity, soil type, light, air. |
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What is an ecosystem?
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A community of living organisms and their physical environment.
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What is a trophic level?
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The position that an organism occupies in a food chain, or a group of organisms in a community that occupy the same position in food chains.
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What are the order of the the group of organisms in the trophic levels?
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Primary Producers, Primary Consumers, Secondary Consumer, Tertiary Consumer
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What are decomposers?
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Organisms that recycle material from all trophic levels.
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Are plants autotrophs or heterotrophs?
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They are autotrophs because they make their own food (via photosynthesis)
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What are the three types of consumers?
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Herbivores, Carnivores and Omnivores.
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What is the difference between a food chain and a food web?
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Food chains are straight lines
Food webs are more complex |
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What are the principles of the pyramid of numbers?
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Snapshot
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What are the principles of the pyramid of biomass?
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Snapshot
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What are the principles of the pyramid of productivity?
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How does the structure of the pyramid affects an ecosystem?
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What is the percentage of energy carried between trophic levels?
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10%
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What trophic level, when disturbed, can affect the whole ecosystem?
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Primary producers.
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What is the difference between interspecific and intraspecific competition?
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Interspecific: Interactions between species
Interspecific: Interactions within species |
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What happens to the species that are weaker in competition with a stronger species?
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They are eliminated or forced to move to another niche.
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State a named primary producer in a marine food web.
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Algae, phytoplankton, etc.
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Where should you always draw when showing a food chain?
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In the mouth
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What is respiration?
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What is constant dry biomass?
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Which one of the three types of pyramid shows the flow of energy through the system?
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What tropic level is in the most trouble?
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Why are humans different from other top carnivores?
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What is the difference between bioaccumulation and biomagnification
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What is the issue with DDT?
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What is the difference between a species and a population?
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What is the difference between a habitat and a niche?
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What is the difference between a community and an ecosystem?
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