Terms : Hide Images
| 8292341239 | Evolution | In general terms, change over time | 0 | |
| 8292341240 | Gene | A sequence of DNA that codes for a particular trait | 1 | |
| 8292341241 | Mutation | An accidental change in DNA | 2 | |
| 8292341242 | Genetic drift | Biological evolution that occurs by chance; natural disasters or fishing nets | 3 | |
| 8292341243 | Natural selection | The process by which traits that improve an organism`s chances for survival and reproduction are passed on more frequently to offspring than those that do not | 4 | |
| 8292341244 | Fitness | the degree to which an organism can reproduce successfully in its environment | 5 | |
| 8292341245 | Adaptation | A heritable trial that increases the likelihood of an individual`s survival and reproduction | 6 | |
| 8292341246 | Artificial selection | A human-controlled process to produce individuals with certain traits | 7 | |
| 8292341247 | Speciation | The process by which new species are generated | 8 | |
| 8292341248 | Extinction | The disappearance of a species from Earth | 9 | |
| 8292341249 | Niche | An organism's habit, resource use, and fundamental role in a community | 10 | |
| 8292341250 | Tolerance | The ability to survive and reproduce under charging environmental conditions | 11 | |
| 8292341251 | Resource partitioning | A process that allows different species to share common resources | 12 | |
| 8292341252 | Predation | The process by which individuals of one species (the predators) hunt, capture, and feed on individuals of another species (the prey) | 13 | |
| 8292341253 | Coevolution | The process by which two species evolve in response to changes in each other | 14 | |
| 8292341254 | Parasitism | The relationship between two organisms from different species in which one organism (the parasite) depends on the other (the host) for nourishment or some other benefit | 15 | |
| 8292341255 | Symbiosis | A long-term and physically close relationship between two organisms from different species in which at least one organism benefits; commensalism, mutualism, and parasitism are all symbolic relationships | 16 | |
| 8292341256 | Herbivory | The act of feeding on a plant | 17 | |
| 8292341257 | Mutualism | A relationship between two organisms from different species in which both organisms benefit | 18 | |
| 8292341258 | Commensalism | A relationship between two organisms from different species in which one benefits and the other is unaffected | 19 | |
| 8292341259 | Primary producer | An organism that can capture energy from the sun or from chemicals and store it; also called autotroph | 20 | |
| 8292341260 | Photosynthesis | The process by which primary producers use sunlight to convert carbon dioxide and water into sugars, releasing oxygen | 21 | |
| 8292341261 | Chemosynthesis | The process by which bacteria use energy stored in bonds of hydrogen sulfide to convert carbon dioxide and water into sugars | 22 | |
| 8292341262 | Consumer | An organism that relies on other organisms for energy and nutrients; also called heterotroph | 23 | |
| 8292341263 | Cellular respiration | The process by which organism use oxygen to release the chemical energy of sugars, producing carbon dioxide and water | 24 | |
| 8292341264 | Herbivore | An organism that eats plants | 25 | |
| 8292341265 | Carnivore | An animal that kills and eats other animals | 26 | |
| 8292341266 | Omnivore | An animal that eats both plants and animals | 27 | |
| 8292341267 | Detritivore | An organism that scavenges the waste products or dead bodies of other community members | 28 | |
| 8292341268 | Decomposer | An organism that breaks down nonliving matter into simple parts can then be taken up and reused by primary producers | 29 | |
| 8292341269 | Trophic level | A rank in a feeding hierarchy | 30 | |
| 8292341270 | Biomass | The total amount of living tissue in a trophic level | 31 | |
| 8292341271 | Food chain | A linear series of feeding relationships | 32 | |
| 8292341272 | Food web | A diagram of feeding relationships and energy flow showing the paths by which nutrients and energy pass from organism to organism as one consumes another | 33 | |
| 8292341273 | Keystone species | A species that has a strong or wide-ranging impact on a community | 34 | |
| 8292341274 | Succession | A somewhat predictable series of changes over time in a community | 35 | |
| 8292341275 | Primary succession | The somewhat predictable series of changes in a community that follows a disturbance so severe that no vegetation or soil life remains | 36 | |
| 8292341276 | Pioneer species | One of the first species to colonize newly exposed land | 37 | |
| 8292341277 | Secondary succession | The somewhat predictable series of changed in a community that follows a disturbance that dramatically alters the community but does not destroy all vegetation or soil life | 38 | |
| 8292341278 | Invasive species | A nonnative species that spreads widely in a community | 39 | |
| 8292341279 | migration | immigration into or emigration out of the population that causes change (gene flow) | 40 |
