Features that help an organism survive in its environment
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Biodegradable
Substances that can be broken down by microorganisms such as fungi and bacteria. Most paper and wood items are biodegradable, but most plastics are not
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Biodiversity
The great variety of living things, both within a species and between different species
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Carbon cycle
The cycling of the element carbon in the environment between the atmosphere, biosphere, hydrosphere and lithosphere. It exists in different compounds but in the atmosphere it is mainly present as carbon dioxide
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Combustion
The process of burning a substance that reacts with oxygen to produce heat and light
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Competition
Different organisms that require the same resources, such as water, food, light or space, must compete for the resource
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Consumers
Organisms that eat others in a food chain. This is all of the organisms in the food chain except the producer.
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Decomposer bacteria
Bacteria that break down the proteins in dead organisms
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Decomposers
Organisms that feed on dead organisms. Decomposers breakdown the complex organic chemicals in their bodies, releasing nutrients back into the ecosystem to be used by other living organisms
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Decomposition
Breakdown of organic matter (dead organisms)
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Denitrification
Removal of nitrogen from soil.
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Denitrifying bacteria
Bacteria that break down nitrates in the soil, releasing nitrogen into the air
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Detritivores
Organisms that feed on dead organisms and waste. Woodlice, earthworms and millipedes are examples of detritivores
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Diseases
A condition that impairs normal functioning of an organisms body, usually associated with particular signs and symptoms. It may be caused by an infection or the dysfunction of internal organs
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Evolution
The process by which species gradually change over time. Evolution can produce new species
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Extinct
A species is extinct when all the members of the species have died out
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Fertile
An organism that can produce offspring
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Food Web
A series of linked food chains showing what eats what in a habitat
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Fossils
The stony remains of an animal or plant that lived millions of years ago, or an imprint of its mark, for example, a footprint in a surface
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Other cards in this set
Card 2
Front
Biodegradable
Back
Substances that can be broken down by microorganisms such as fungi and bacteria. Most paper and wood items are biodegradable, but most plastics are not
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