Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Biology
Ecological Relationships
| Question | Answer |
|---|---|
| Ecology | study of the interactions of living organisms with one another and their physical environment |
| Habitat | Where an organism lives |
| Species | Organisms that with similar DNA that can interbreed |
| Niche | The job or role of a species and environment |
| Population | All the individuals of a species that live together in the same place at one time |
| Community | All the different populations that live together in the same habitats |
| Ecosystem | A community and all the physical aspects of the habitat, including abiotic and biotic |
| Biotic factor | Any living things in the organism |
| Abiotic factor | Any nonliving thing in the environment |
| Biodiversity | The number of species living within an ecosystem (rainforest is more diverse than desert) |
| Energy flow in ecosystems | One way flow (begins with sun) and determines how many organisms you can have in one area Producers convert light into usable, chemical energy Consumers eat in order to get energy |
| Types of consumers | Herbivores carnivores, omnivores, detritivores, decomposers and scavengers |
| Herbivores | Plant eaters |
| Carnivores | Eaters of meat |
| Omnivores | Plant and meat eaters |
| detritivores | Get energy from dead matter or organic waste |
| Decomposers | Type of detritivore that causes decay (ex... bacteria and fungi) |
| Scavenger | Feet off dead or decaying matter. (ex... vultures and ants) |
| Food chain | Possible one way pathway of energy through an ecosystem |
| Food web | All the possible food chains in the ecosystem |
| Trophic level levels | Steps in a food chain that energy passes through |
| First trophic level | Always a producer |
| Second tropic level | Primary consumer – the first organism that eats (herbivore or omnivore) |
| Third trophic level | Secondary consumer – the second organism that eats (omnivore or carnivore) |
| Fourth trophic level | Tertiary consumer – usually a "top" carnivore |
| Energy pyramid | Diagram showing amount of energy contained in each trophic level |
| Biomagnification | Tendency of pollutants to become concentrated in the higher trophic levels |
| Competition Intra Inter | Organisms attempt to use a resource in the same place at the same time (two dear, competing for the same plant to eat.) within the same species different species |
| Predation | One organism (predator) hunts and kills another (pray) for food (a lion hunts and kills an antelope) |
| Symbiotic relationship (symbiosis) | A close and long-term interaction between two organisms/A relationship in which two different organisms live in close association with each other Mutualism, commensalism, parasitism |
| Mutualism | Both organisms benefit |
| Commensalism | One organism benefits, and the other is not helped or harmed |
| Parasitism | One benefits and one is harmed |
| Population growth | An increase in the size of a population |
| Population exponential growth | Population increases while growing faster |
| Limits of the environment | Populations do not have limits on growth |
| Limiting factors | Factor such as availability of food and space cause the population to stop increasing |
| Carrying capacity | The number of organisms of one species that an environment can support, this is when it reaches the S shaped curve (log) |
| Density dependent factors | These include disease, competition, parasites, and food, as populations increase these factors. Have a great effect. |
| Density independent factors | These affect all populations, most are abiotic factors such as temperature, storms, floods, droughts, and habitat disruptions |
| Ecological pyramids (biomass vs numbers) | Pyramids that represent trophic levels by biomass are always typical (narrower at top than bottom. ) Pyramids showing numbers of organisms in the trophic levels can be atypical in shape (may not be widest at bottom and narrow as they rise). |
| herbivory | feeding on plants |
| biome | A group of ecosystems with similar climates and organisms. This is determined by similar precipitation and temperature. |
| Indicator Species | an organism that signals a change in an environment |
| keystone species | An animal that others in an ecosystem largely depend on. They have a large impact if removed. |
| group behavior | Coordinated behavior of groups of similar animals |
| Primary succession | succession that occurs in a never before inhabited ecosystem (new island) |
| Secondary succession | succession that occurs when an ecosystem has been destroyed, perhaps by fire, and begins to regrow |
| Pioneer species | first organisms to live in a new habitat. Ex….usually small plants, moss, lichen |
Created by:
MeghnaG791
Popular Biology sets