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Description
Flashcards by Aafreen Butt, updated more than 1 year ago
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Created by Aafreen Butt
about 5 years ago
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| Question | Answer |
| population | a group of the same species that live together in a certain habitat |
| community | different species in a certain area that interact with each other |
| ecosystem | certain areas consisting of populations that interact with each other and other abiotic factors |
| habitat | an area of environment where an organism lives |
| biotic factors | a living factor in an environment that affects an organism (plants, animals, humans, fungi) |
| abitotic Factors | a non-living factor in an environment that affects an organism (water, soil, air, heat, light) |
| interdependence | the loss of one organism that has an effect on other species in a food web |
| pollution | substances that cause harm in an environment |
| population density | the numbers in a population per unit area |
| trophic level | the feeding level an organism occupies in a food web |
| parasitism | when an organism lives on or within a host and obtains food from it |
| mutualism | two species living together and benefitting from the relationship |
| quadrat | a frame of known area used when sampling organisms |
| belt transect | quadrats placed along a line in a habitat |
| random sampling | placing quadrats at random positions within a habitat |
| biomass | the mass of living material within an ecosystem, measured by mass per unit area |
| producer | primary food producers create their own food from sunlight using photosynthesis |
| consumer | each consumer gets food from eating the organism from the trophic level before |
| detrivore | consumers obtaining energy from organic waste and dead organisms |
| bio-diversity | the variety of species in an area |
| non-indigenous species | a species that was introduced from another country/place |
| indigenous species | a species that was born and bred from that place |
| eutrophication | excessive growth of algea in rivers due to nutrients from nitrates flowing in from farming |
| conservation | trying to protect an endangered species or habitat |
| reforestation | planting new trees in an area where they have been cut down |
| food security | having access to enough healthy food |
| pest | animal that causes problems to a human or their food source |
| pathogen | an organism that causes disease |
| biofuel | plants used to produce fuel |
| decomposers | organisms that break down carbon compounds in plant or animal waste |
| potable water | water safe for drinking |
| desalination | making fresh water from salty water by removing the salt |
| indicator species | organism whose presence indicates the absence of certain types of pollution |
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