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Gr 7 EnrgMattrEcosy
Fletcher 7th grade test Ecology & Evolution review 2022
| Term | Definition |
|---|---|
| Top Consumer | Consumers without natural predators |
| Producers | Autotrophic organisms that are able to make their own food from sunlight energy |
| Consumers | Organisms that cannot make their own food so they must consume it from other sources |
| Food | Energy stored in chemical bonds inside organisms |
| Decomposers | Organisms that feed on dead or decaying matter |
| Primary consumer | The first consumer in a food chain |
| Herbivore | Organisms that get their energy by eating plants only |
| Carnivore | Organisms that can only get their energy by eating other animals |
| Omnivore | Organisms that can get their food energy from plant and animal sources |
| Tertiary consumer | Organisms that feed on secondary consumers |
| Biomass | The matter that exists in living things |
| Radiant energy | The scientific name for Sunlight energy |
| Infrared radiation | Heat waves |
| Thermal energy | Heat energy |
| Predator | Organism that hunts other organisms for food |
| Prey | Organism that is hunted by other other organisms |
| Food Web | Connected food chains in an ecosystem |
| Energy | Something that creates the ability for work to be done |
| Glucose | The sugar that is produced by green plants |
| Photosynthesis | The process that turns sunlight energy into stored chemical energy |
| Food | Energy stored in organisms |
| Oxygen | Gas produced as a by product of photosynthesis |
| Carbon Dioxide | Gas produced by organisms doing cellular respiration |
| Ten | The percentage of energy that moves up from one trophic level on an energy pyramid to the next. |
| adaptation | a characteristic that helps an organism survive and reproduce in its environment |
| species | a group of organisms that can mate with one another to produce fertile offspring |
| evolution | the process by which populations accumulate inherited changes over time |
| fossil | solidified remains or imprints of a once-living organism plate tectonics |
| fossil record | fossils that provide a historical sequence of life |
| trait | a quality that can be passed on from 1 generation to another |
| selective breeding | breeding of organisms that have a certain desired trait |
| natural selection | process by which organisms with favorable traits survive and reproduce at a higher rate than organisms without the favorable trait |
| mutation | a change in the order of the bases of DNA |
| speciation | process by which 2 populations of the same species become so different that they can no longer interbreed |
| extinct | a species of organism that has died out completely |
| What are the 3 ways you can compare organisms? | skeletal structures, DNA and the embryonic structures |
| What kind of rock are fossils found in? | sedimentary rock |
| Who made observation that later became the foundations for his theory of evolution by natural selection? | Charles Darwin |
Created by:
coach_fletcher
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