Life on Earth Buzz Words

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Abiotic
A non living element of an ecosystem
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Biodiversity (1)
The variety of species present in the community of an ecosystem
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Biodiversity (2)
The wide range of animals and plants in the world
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Biome
Various regions of the planet distinguished by climate and distinctive groups of plants
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Species
Group of organisms capable of breeding with each other to produce fertile offspring
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Population
All the organisms of one species found in a particular area
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Niche
The role an organism plays in its community
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Habitat
Place that an organism lives in
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Grazing
When animals feed on grass
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Flora
All types of plant species that live in a specific area
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Fauna
All the different types of animals that live in a specific area
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Community
All the organisms present in an ecosystem
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Biomes
Major world communties of plant and animal life
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Ammonium
A nitrogen-containing waste product formed by the decomposition of bacteria
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Competition
The intercation between organisms after the same limited resources
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Producer
A green plant that makes its own food by photosynthesis
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Consumer
An organism that obtains its energy by eating other organisms
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Decomposer
An organism which eats dead organisms or animal droppings, and breaks them down into simple materials
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Denitrifying Bacteria
The bacteria that converts nitrates in the soil into nitrogen gas which is released into the atomsphere
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Nitrifying bacteria
The bacteria that produce nitrate which is released into the soil
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Interspecific competition
Competition that occurs between organisms of two different species for food etc.
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Intraspecific competition
The competition between organisms within the same species for food etc
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Nitrate
The chemical absorbed from the soil by plants to produce their proteins
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Nitrogen Cycle
The sequence of events/processes involved in the recycling of nitrogen in the environment
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Nitrogen fixing bacteria
The bacteria found free living in the soil or in the root nodules of some plants such as peas and clover that convert nitrogen gas into nitrate
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Pyramid of Energy
A diagram that shows the relative quanities of energy at each stage in a food chain
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Pyramid of Biomass
A diagram to illustrate the amount of biological material within a food chain or web
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Pyramid of numbers
A diagram that shows the relative numbers of organisms at each stage in a food chain
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Aerobic
with oxygen
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Algal bloom
A marked increase in the population of algae in the water-ways, usually caused by fertiliser runoff from surrounding fields. Turns the water green.
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Fertilisers
Nutrient added to the soil to increase the soil fertility.
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Genetically modified
Describes a cell or organism that has had its genetic code altered by adding a gene from another organism
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Indicator species
The presence, abundance or absenced of these organisms provides information such as the level of pollution in the environment
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Intensive farming
Farming methods that usually involve monoculture and using pesticides and fertilisers to improve crop yield
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Pesticides
Chemicals that kill off organisms
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Toxicity
Poison level
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Adaption
A feature of an organism's body which helps it to survive
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Mutation
A random and spontaneous change in the structure of a gene, chromosome or number of chromosomes
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Selection pressure
A factor such as predation or disease that affect a population resulting in the death of some individuals and the survival for others
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Radation
Energy carried by particles from a radioactive substance, or spreading out from a source
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Selective advantage
A favourable characteristic which gives an organism an increased chance of survival
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Speciation
The formation of new and distinct species in the course of evolution
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Species
Used in the classification of living organisms capable of interbreeding
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Pitfall trap
A sampling techinque used to trap small invertebrate animals living on the soil surface or in leaf litter
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Quadrat
A square frame of a known area used for sampling the abundance and distribution of slow or non-moving organisms
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Sample
A representative part of a larger quanity
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Other cards in this set

Card 2

Front

The variety of species present in the community of an ecosystem

Back

Biodiversity (1)

Card 3

Front

The wide range of animals and plants in the world

Back

Preview of the back of card 3

Card 4

Front

Various regions of the planet distinguished by climate and distinctive groups of plants

Back

Preview of the back of card 4

Card 5

Front

Group of organisms capable of breeding with each other to produce fertile offspring

Back

Preview of the back of card 5
View more cards

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