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 B Unit 15
| Term | Definition |
|---|---|
| The Study of Ecology | The interaction between living and nonliving things in the enviornment |
| Individual Organisms | Smallest unit of study |
| Population | A group of single species in an ecosystem |
| Community | All of the populations in an ecosystem |
| Ecosystem | A community and all of the abiotic factors that affect it |
| Biosphere | All places on earth where life exists |
| Lithosphere | The solid part of the Earth (land) |
| Hydrosphere | The water on and around the Earth |
| Atmosphere | The air surrounding the Earth |
| Abiotic Factors | Influence the types of, and number of living organisms that can inhabit the ecosystem |
| Biotic Factors | Terminology used in discussing bitotic (living) parts of an ecosystem |
| Ways to define Population | Natural barriers and Chosen Barriers |
| Population Density | Number of individuals of a species in a defined area |
| Limits On Population Size | Carrying Capacity, Predators, and Competition |
| Carrying Capacity | Number of organisms in a population that the environment can maintain |
| Prey Interactions | An interaction in which one organism(predator) eats another (prey) |
| Competition | When 2 or more species fight for a common resource |
| Habitat | When an organism lives |
| Niche | Includes an organism's habitat, food sources, and time of day it is most active |
| Symbiotic Relationship | Close interaction between species where one species lives in or on the other |
| Parasitism | One organism benefits, one is harmed |
| Mutualism | Both organisms benefit |
| Commensalism | One organism benefits, the other is unharmed |
| Ecological Succesions | Changes in ecosystems. Both abiotic and biotic factors may change over time |
| Pioneer Oragnisms | Organisms to appear in an area after a natural disaster or other event that caused life to disappear |
| Climax Community | A community that has reached a long term stable state |
| Primary Ecological Succrssion | When a community arises from a lifeless with no soil because of autotrophs appearing first and making food for other organism to survive. |
| Secondary Ecological Succesion | A community that arises after a disturbance that damages the existing community but leaves the soil intact |
| Biodiversity | A healthy ecosystem is filled with many types of living things |
| Energy Flow and Chemical Cycling | Autotrophs/Producers make their own food called glucose by preforming Photosynthesis. Consumers/Heterotrophs must consume other organisms for their energy source |
| Herbivore | Eat plants |
| Carnivore | Eat meat |
| Predator | Kill their food |
| Scavenger | Eat dead animals |
| Omnivore | Eats plants and animals |
| Decomposer (saprobe) | Breakdown dead things and return valuable raw materials to the soil |
| Food Chains | Show the energy transfer from, one trophic to another |
| Food Webs | Consists of interconnected food Chains in a single ecosystem and is a more realistic view of the energy pathways |
| Trophic Levels | Producers: make their own food Primary Consumers: eat producers Secondary Consumers: eat primary consumers Tertiary Consumers: eat seconfary consumers |
| Nutrient Cycle | All of the materials in an ecosystem can be recycled except for energy because it is lost as heat from metabolic processes |
| Chemical Cycling Step 1 | Producers use chemicals from the environment and the sun's energy to produce organic compounds |
| Chemical Cycling Step 2 | Consumers eat producers and chemicals are used in reactions while some are released as waste products |
| Chemical Cycling Step 3 | Organisms die and are broken down by decomposers. Inroganic chemicals go into the air, soil, and water while producers are supplied with raw materials(nitrogen, carbon Dioxide, and water) |
Created by:
user-1866784
Popular Science sets