Flashcards
ESS ecosystems (topic 2) vocab
Cards in this deck (31)
- 1BiomeA collection of ecosystems sharing common climatic conditions
- 2Gross Primary Productivity (GPP)The total gain in energy or biomass per unit area per unit time by green plants
- 3Net Primary Productivity (NPP)The total gain in energy or biomass per unit area per unit time by green plants, after allowing for losses to respiration.
- 4Gross Secondary Productivity (GSP)The total gain in energy or biomass per unit area per unit time by consumers through absorption.
- 5Net Secondary Productivity (GSP)The total gain in energy or biomass per unit area per unit time by consumers after allowing for losses to respiration.
- 6AutotrophsOrganisms that can make their own food
- 7HeterotrophsOrganism which obtain energy (food) from other organisms
- 8SpeciesOrganisms that can interbreed and produce fertile offspring
- 9PopulationA group of individuals of the same species living in the same area at the same time
- 10HabitatThe environment where a species usually lives
- 11Ecological nicheThe job of an organism. It includes every relationship the organism may have e.g where it lives, predators, competitors.
- 12CommunityA group of populations living and interacting with each other in a common habitat
- 13EcosystemA community of interdependent organisms and the physical environment which they inhabit.
- 14BiosphereThe part of the Earth inhabited by humans.
- 15Biotic factorsOrganisms or their products that directly or indirectly affect an organism and its envronment
- 16Abiotic factorsThe non-living, physical and chemical components of an ecosystem
- 17Food chainA representation of the flow of energy from one organism to the next, showing feeding relationships between species in an ecosystem.
- 18Food webA complex network of interrelated food chains
- 19Trophic levelThe position that an organism or a group of organisms in a community occupies in a food chain
- 20ProducerGreen plants that make their own food from simple inorganic substances
- 21ConsumersOrganisms which feed on autotrophs or other heterotrophs to gain energy
- 22DecomposersOrganisms that obtain their energy using dead organisms as their food source
- 23DetritivoresConsumers that derive their food from detritus or decomposing organic material
- 24BioaccumulationA substance which can't be excreted or egested and increases in concentration through the food chain
- 25BiomagnificationSmall amounts of a substance are taken in by organisms lower down in the food chain and are unaffected but when higher consumers eat large volumes of affected organisms, the substance can cause disease or death
- 26Intraspecific competitionCompetition among members of the same species
- 27Interspecific competitionCompetition between members of different species
- 28PredationWhen one animal (predator) eats another animal (prey)
- 29HerbivoryAn animal eating a green plant
- 30ParasitismA relationship between two species, in which one species (parasite) live in or on another (host), gaining food from it.
- 31MutualismA relationship between two or more species in which both or all benefit and non suffer
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- International Baccalaureate ESS Flashcards on ESS ecosystems (topic 2) vocab, created by jessica.f on 02/04/2014.
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