biology ecology crossword

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  • Created by: bambi
  • Created on: 08-09-13 17:41
The communities/ living organisms (biotioc factor) and environmental factors (abiotic factor) in a particular area . These factors are interacting and independent, They make up a self contained system That's self supporting in terms of energy flow.
Ecosystem
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All the factors in a habitat which affect an organism . These may either living (biotic) or non-living (abiotic)
Environment
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All the members of one species in a habitat at one time
Community
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The geographic area occupied by an ecosystem
Habitat
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The role of a species within a ecosystem ; its location/ spatial habitat and functions - relationships with other organisms -and it's effect on the environment
Niche
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A group of potentially interbreeding individuals; which do not normally interbreed with any other groups to produce living fertile offspring .
Species
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A sequence of organisms in an ecosystem in which each is the food of the next organism in that sequence . Arrows represent energy flow through the chain.
Food chain
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All the interconnected food chains in an ecosystem ( usually complex to calculate)
Food web
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A feeding level in a food web - defined by the method of obtaining food . All the organisms in a particular _________ are the same number of energy transfers away from the producers.
Trophic level
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The first organism in a food chain usaully an autotroph
Producer
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An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Autotroph
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An organism deriving its nutritional requirements from complex organic substances.
heterotroph
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The second organism in a food chain ( second tropic level) it consumes energy from the producer so it is a herbivore
Primary consumer
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An animal that feeds on plants
herbivore
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An animal that feeds on flesh.
carnivore
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Environmental features such as climatic and edaphic factors , that do not derive directly from the presence of other organisms .
Abiotic factor
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Any characteristic of the environment resulting from the physical , chemical or biotic components of the soil
Edaphic factor
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Those features of the environments of organisms arising from the activities of other organisms.
Biotic factor
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Consumes/ obtains energy from the primary consumer thus a carnivore
Secondary consumer
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A representation of the number of organisms in each trophic level in a ecosystem; the width of each block is proportional to the number of organisms in each trophic level .
Pyramid of numbers
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A better representation of the biomass in each trophic level in a ecosystem ; the width of each block is proportional to the biomass in each trophic level.
Pyramid of biomass
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The total quantity or weight of organisms in a given area or volume.
Biomass
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A representation of the energy in each trophic level in a ecosystem . The width of each block is proportional to the energy in each trophic level.It is usually measured in KJ M.^-2 year^-1.
Pyramid of energy
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The maximum population that an ecosystem can support
Carrying capacity
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The environmental factors which reduce poulation growth rate e.g disease , predation, competition
Environmental resistance
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Other cards in this set

Card 2

Front

All the factors in a habitat which affect an organism . These may either living (biotic) or non-living (abiotic)

Back

Environment

Card 3

Front

All the members of one species in a habitat at one time

Back

Preview of the front of card 3

Card 4

Front

The geographic area occupied by an ecosystem

Back

Preview of the front of card 4

Card 5

Front

The role of a species within a ecosystem ; its location/ spatial habitat and functions - relationships with other organisms -and it's effect on the environment

Back

Preview of the front of card 5
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