Topic 3 - Energy and Ecosystem

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Biomass
mass of living material in an ecosystem
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Calorimetry
the study of measuring heat changes from chemical reactions or physical changes
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Carnivors
animals that eat other animals
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Community
all the organisms, of all the different species living in the same place at the same time
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Consumers
organisms that eat other organisms
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Decomposers
organisms that break down the remains or waste products of other organisms
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Faeces
waste matter remaining after food has been digested discharged from the bowls
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Food chain
series of organisms along which energy is transferred in the form of food
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Ingested
taken into the body by swallowing or absorbing it
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Intensive rearing
rearing animals using high input such as artificial feeds
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Joule
unit of work or energy - the energy required to raise 1g of water by 0.24'C
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Net
remaining after all deductions
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Net primary production (NPP)
Net grain of dry mass stored in a plant after it has been used up some material in its own respiration
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Primary consumers
organisms that eat producers
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Primary production
rate at which plants convert CO2 to organic material
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Producers
organisms that take energy from the non - living environment to synthesise organism substances from inorganic substances plants are producers
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Productivity
the rate of production of new biomass by an individual , population or community
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Rate
the relative speed of progress of change of some variable
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Respiration
a process in living organism involving the production of energy typically the intake of O2 and the release of CO2 from the oxidation of complex organic substances
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Secondary consumers
organisms that feed on primary consumers
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Tertiary consumers
organisms that eat secondary consumers
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Trophic level
step in a food chain at which an organisms feeds
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Card 2

Front

the study of measuring heat changes from chemical reactions or physical changes

Back

Calorimetry

Card 3

Front

animals that eat other animals

Back

Preview of the back of card 3

Card 4

Front

all the organisms, of all the different species living in the same place at the same time

Back

Preview of the back of card 4

Card 5

Front

organisms that eat other organisms

Back

Preview of the back of card 5
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