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
chapter 5
chapter 5 lesson 1
| Term | Definition |
|---|---|
| evolution | as a general term, means change over time |
| gene | is a sequence of DNA that codes for a paticular trait |
| mutations | are changes in DNA |
| genetic drift | biological evolution that occurs by chance |
| natural selection | is the process by which traits that improve an organisms chances for survival |
| fitness | describes how reproductively successful an organism is in its environment |
| adaptation | a heritable trait that increases an individuals fitness |
| artificial selection | this process of selection conducted under human direction |
| speciation | the process by which new species are generated |
| extinction | the disappearance of a species from earth |
| niche | describes its use of resources and its functional role in a community |
| tolerance | is the ability to survive and reproduce under changing environmental conditions |
| resource partitioning | because the species partition |
| predation | is the process by which an individual of one species |
| Coevolution | is the process by which two species evolve in response to changes in each other |
| Parasitism | is a relationship in which one organism, the parasite, depends on another, the host, for nourishment or some other benefits |
| symbiosis | as a long-lasting and physically close relationship in which at least one organism benefits |
| herbivory | insects that feed on plants are the most common type of herbivore |
| mutualism | a relationship in which two or more species benefit |
| commensalism | describes a relationship in which one species benefits and the other is unaffected |
| primary producers | organisms called autotrophs |
| photosynthesis | is the process by which primary producers use sunlight to convert carbon dioxide and water into sugars releasing oxygen along the way |
| chemosynthesis | chemosynthesis can be summarized |
| consumers | organisms that rely on other organisms for energy and nutrients are called heterotrophs |
| cellular respiration | is the process by which organisms us |
| predation | is the process by which an individual of one species |
| Coevolution | is the process by which two species evolve in response to changes in each other |
| Parasitism | is a relationship in which one organism, the parasite, depends on another, the host, for nourishment or some other benefits |
| symbiosis | as a long-lasting and physically close relationship in which at least one organism benefits |
| herbivory | insects that feed on plants are the most common type of herbivore |
| mutualism | a relationship in which two or more species benefit |
| commensalism | describes a relationship in which one species benefits and the other is unaffected |
| primary producers | organisms called autotrophs |
| photosynthesis | is the process by which primary producers use sunlight to convert carbon dioxide and water into sugars releasing oxygen along the way |
| chemosynthesis | chemosynthesis can be summarized |
| consumers | organisms that rely on other organisms for energy and nutrients are called heterotrophs |
| cellular respiration | is the process by which organisms us |
| herbivores | most primary consumers, such as deer and grasshoppers, eat plants |
| carnivores | most secondary and tertiary consumers kill and eat other animals |
| omnivores | animals that eat both plant and animal food |
| decomposers | such as fungi and bacteria |
| trophic level | is its rank in a feeding hierarchy |
| biomass | is the total amount of living tissue it contains |
| food chain | is a linear series of feeding relationship |
| food web | is a visual map of feeding relationships and energy flow |
| keystone species | a species that has strong or wide reaching impact on a community |
| succession | when this occurs a community experiences a somewhat predictable series of change over time |
| primary succession | when a disturbance is so severe that no vegetation or soil life |
| pioneer species | species that colonize the newly exposed land |
| secondary succession | unlike primary succession begins when a disturbance |
| invasive species | is a nonnative organism that spreads widely in a community |
Created by:
dasilvic500