Flashcards
Ecosystems and Materials Keywords (YEAR 9)
Cards in this deck (34)
- 1populationa group of the same species that live together in a certain habitat
- 2communitydifferent species in a certain area that interact with each other
- 3ecosystemcertain areas consisting of populations that interact with each other and other abiotic factors
- 4habitatan area of environment where an organism lives
- 5biotic factorsa living factor in an environment that affects an organism (plants, animals, humans, fungi)
- 6abitotic Factorsa non-living factor in an environment that affects an organism (water, soil, air, heat, light)
- 7interdependencethe loss of one organism that has an effect on other species in a food web
- 8pollutionsubstances that cause harm in an environment
- 9population densitythe numbers in a population per unit area
- 10trophic levelthe feeding level an organism occupies in a food web
- 11parasitismwhen an organism lives on or within a host and obtains food from it
- 12mutualismtwo species living together and benefitting from the relationship
- 13quadrata frame of known area used when sampling organisms
- 14belt transectquadrats placed along a line in a habitat
- 15random samplingplacing quadrats at random positions within a habitat
- 16biomassthe mass of living material within an ecosystem, measured by mass per unit area
- 17producerprimary food producers create their own food from sunlight using photosynthesis
- 18consumereach consumer gets food from eating the organism from the trophic level before
- 19detrivoreconsumers obtaining energy from organic waste and dead organisms
- 20bio-diversitythe variety of species in an area
- 21non-indigenous speciesa species that was introduced from another country/place
- 22indigenous speciesa species that was born and bred from that place
- 23eutrophicationexcessive growth of algea in rivers due to nutrients from nitrates flowing in from farming
- 24conservationtrying to protect an endangered species or habitat
- 25reforestationplanting new trees in an area where they have been cut down
- 26food securityhaving access to enough healthy food
- 27pestanimal that causes problems to a human or their food source
- 28pathogenan organism that causes disease
- 29biofuelplants used to produce fuel
- 30decomposersorganisms that break down carbon compounds in plant or animal waste
- 31potable waterwater safe for drinking
- 32desalinationmaking fresh water from salty water by removing the salt
- 33indicator speciesorganism whose presence indicates the absence of certain types of pollution
- 34—
Information
- Description
- YEAR 9- Ecosystems and Materials- AQA Biology
- Created by
- Aafreen Butt
- Views
- 42
- Tags
- Rating