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31 Cards in this Set
- Front
- Back
Adaptation |
A feature that an organism has that enables it to survive. |
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Abiotic Factor |
nonliving factor of the environment. |
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Biotic Factor |
a living factor of the environment. |
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Commensalism |
relationship between two organisms, where one benefits and the other is un harmed. |
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Community |
all the living organisms in an ecosystem. |
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Competition |
relationship between organisms that are trying to use the same limited resources |
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Ecology |
the study of how organisms interact with each other and their environment. |
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Ecosystem |
a place where organisms and their physical surroundings form a balanced environment that is different from others nearby. |
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Ectothermic |
Animals that obtain body heat from outside their body. |
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Endothermmic |
Animals that can generate body heat internally. |
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Environment |
All the factors in an organisms surroundings, that affect it. |
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Habitat |
Where an organism lives. |
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Interdependence |
Relationship between organisms, where each affects the others survival. |
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Mutualism |
Relationship between two organisms living in the same ecosystem where both benefit. |
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Parasitism |
Relationship between two organisms where one benefits (parasite) and the other is harmed (host). |
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Predation |
When an organism (predator) kills and eats another (prey). |
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Biodiversity |
The range of different species in a community. |
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Consumers |
organisms that require a ready made source of food. |
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Decomposers |
Organisms that break down bodies of dead organisms and animal wastes, and recycle the material. |
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First - Order - Consumer |
in the food chain, the position of a herbivore. |
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Food-Chain |
A sequence of organisms feeding on each other. |
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Keystone Species |
Species that are critical to the survival of the whole species. |
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Producers |
organisms that make food for the whole community (USUALLY PLANTS) |
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Pyramid of biomass |
a diagram that shows the total mass of organisms at each trophic level. |
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Second - Order - Consumer |
The animal feeding on the First - order - consumer. |
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Third - Order - Consumer |
The animal feeding on the second order consumer |
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Energy Transfer |
The movement of energy from one organism to the next in a food chain (represented by arrows, 90% lost at each level). |
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Overcropping |
killing more animals than the population can replace by its normal breeding cycle. |
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Introduced Species |
animals and plants brought to Australia from other countries. |
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Natural Events |
Factors that can affect populations in ecosystems, such as bushfires, droughts and floods. |
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Habitat Destruction |
Damage caused to an environment that an organism relies on for survival. |