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
Ecology
| Question | Answer |
|---|---|
| bioaccumulation | when an individual continues to eat food contaminated with toxins |
| bioamplification | when toxins are passed on through the different trophic levels the toxin is more concentrated |
| how much energy is passed on to the next trophic level in the food chain | 10% |
| biodiversity | the number and variety of a species in a region |
| why is biodiversity important | more resiliant to stresses |
| threats to biodiversity | introducing alien species because they take over the habitat of native species |
| 2 ways atmospheric gas is converted to a usable form | lightning and decomposition |
| how is nitrogen returned to the atmosphere | dentrification |
| 2 ways of how human activity is increasing the levels of carbon dioxide released in the atmosphere | burning fossil fuels and clear cutting forests |
| name one ecosystem service and 2 examples | provisioning-wood and cotton |
| dentrification | the process which converts nitrates back to atmospheric nitrogen gas |
| what is a restoration method? Explain | reforestation is regrowth of a forest either through natural process or planting seeds |
| carrying capacity | the maximum number of individuals of a species that can be supported indefinitely by the ecosystem |
| density | refers to the number of organisms in an area |
| 3 ways that carbon dioxide is released into the atmosphere | respiration, volcanic eruptions and combustion |
| photosynthesis chemical equation | 6CO2+6H2O+sunlight-6O2+C6H12O6 |
| cellular respiration chemical equation | 6O2+C6H12O6-6CO2+6H2O+energy |
| predation | one organism consumes another |
| competition | two or more organisms compete for the same resources such as food, space and water |
| symbiosis | interactions between members of two different species that live in close association |
| symbiotic relationships | mutualism, parasitism and commensalism |
| mutualism | when both organisms benefit from the relationship |
| parasitism | when one benefits from the relationship and the other is harmed |
| commensalism | occurs when one species benefits from the relationship and without harm or benefit to the other species |
| one way to measure biodiversity | netting |
| netting | the use of nets to capture specific species of organisms and then the organisms are released after sampling |
| first trophic level | primary producers |
| second trophic level | primary consumers |
| third trophic level | secondary consumers |
| fourth trophic level | tertiary consumers |
| fifth trophic level | top consumer |
| atmosphere | air |
| lithosphere | land |
| hydrosphere | water |
| biosphere | life |
| ecosystem | consists of all living organisms that share a region and interact with each other and their non-living community |
| what is a sustainable ecosystem | one that is capable of withstanding pressure and giving support to a variety of organisms |
| biotic | all living or recently living parts of the ecosystem |
| abiotic | all the non-living parts of the ecosystem that organisms need to survive |
| photosynthesis | the conversion of solar energy into chemical energy which is food |
| cellular respiration | provides energy for the cell |
| trophic levels | categories of organisms |
| how much energy is passed out as waste | 60% |
| how much energy is used for movement and heat | 30% |
| the solid part of the earths surface is called the | lithosphere |
| oxygen is required by almost all organisms for this process | cellular respiration |
| cellular respiration is a by-product of | photosynthesis |
| what refers to all water on the earth in solid, liquid and gas state | hydrosphere |
| what is an ecosystem that can continue to function over very long periods of time | a sustainable ecosystem |
| the population that an ecosystem can support continuously is called its | carrying capacity |
| what describes a community of living things and their surrounding physical environment | ecosystem |
| when non-native species out compete native species, it's called | competition |
| some pesticides and other environmental toxins build up or | amplify in living organisms |
| what is a large concentration of a single species growing in one area | population |
| organism | individual |
| population | many organisms of one species living in an area |
| community | many different populations living in one area |
Created by:
syddj123
Popular Biology sets