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graphs and human imp
review for human impact and ecology graphs
| Question | Answer |
|---|---|
| competition | 2 populations needing the same resource in an ecosystem |
| deforestation | cutting down large amounts of trees. Leads to increase carbon dioxide and increase in global climate change |
| acid rain | rain that contains sulfur and other acid components that are released from factories (coal burning plants) into the atmosphere. The rain falls to the earth and kills trees and runs into lakes and kill plants an animals living in lakes |
| fossil fuels | organic material deposited in the earth. Used in cars and heat, releasing carbon dioxide into the air which leads to global climate change. |
| biomass | the total living mass in an ecosystem. Largest at the bottom of the energy pyramid and least at the top. |
| nitrogen fixation | when bacteria turn nitrogen into a form that is usable by plants |
| energy pyramid | representation of the levels of energy flowing through the ecosystem. Each level only passes 10 percent of the energy up to the next level |
| human population | exponential growth curve, if it continues it will lead to few natural resources for future generations |
| mutualism | a close relationship between 2 organism in which both organism benefit. ex clown fish and sea anenome |
| parasitism | a close relationship between 2 organisms in which 1 organism benefits and the other is harmed. ex flea and dog |
| migration | when animals travel long distances to mate and or find food |
| Carrying capacity | the maximum number of animals that can live and reproduce in a particular area, the size to which the ecosystem can support |
| biomagnification | increase in the amount of pollution as it moves up the food chain. example mercury in fish |
| nonnative species | animals that are brought to an area where they have no natural predators. They disrupt the food chain and often cause the native species to become extinct by outcompeting them for food and resources |
| predator prey | relationship between 2 animals where 1 animals hunts and kill the other. The graph of the 2 fluctuate with an increase in one causing a decrease in the other and vise versa |
| DNA fingerprinting | a technique often used by forensic scientist to identify an criminal. The technique involve comparing to electrophoresis gels for similarities |
| transgenic bacteria | when a bacterial plasmid has a human gene (or any other different species gene) inserted into it to make things like insulin and other medicine for gene therapy. |
Created by:
TeresaGentry
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