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Janssen Bio Ch 16
Mrs. Janssen's Biology Ch 16
| Question | Answer |
|---|---|
| What is carrying capacity? | The number of organisms a habitat can support. |
| How can humans modify their environment to increase carrying capacity? | agriculture, transportation, medical advances, sanitation |
| What are nonrenewable resources? | Resources that are used up faster than they form. |
| What are renewable resources? | A resource that can be replaced at the same rate or faster than it is being used. |
| What is ecological footprint? | The amount of land necessary to produce and maintain enough food, water, shelter, energy, and waste. |
| What country has the largest ecological footprint in the world? | U.S. |
| What is pollution? | Any undesirable factor added to the air, water, or soil. |
| What is smog? | A type of air pollution caused by the interaction of sunlight with pollutants. |
| What are particulates? | Microscopic bits of dust, metal and unburned fuel produced by industrial processes. |
| How does ground level ozone form? | Reaction between NO2 and O2 (nitrogen dioxide and oxygen) |
| What is acid rain? | Precipitation produced when pollutant lower the pH of rain. |
| What kind of temperatures are associated with higher levels of carbon dioxide? | Warmer |
| What kind of temperatures are associated with lower levels of carbon dioxide? | Cooler |
| What is the greenhouse effect? | Carbon dioxide, water, and methane absorb energy and slow the release of energy from the atmosphere. |
| What are some negative effects of global warming? | Increased flooding, tropical storms, loss of biodiversity |
| What do indicator species do? | Provide a sign of the quality of the ecosystem |
| What indicator species did we use in class to look at how a pollutant affects water? | Duckweed |
| What is biomagnification? | As a pollutant moves up the food chain, the concentration increases |
| Which level of species does biomagnification have the most serious effect? | Those near the top of the food chain |
| What is biodiversity? | The wide variety of species found in an ecosystem |
| Nearly half of all prescribed medications come from what? | Plants |
| Where is biodiversity the highest? | Rain forest |
| What is habitat fragmentation? | When a barrier forms that prevents an organism from accessing its entire home range. |
| What is another name for introduced species? | Invasive species |
| What is sustainable development? | Natural resource are used and managed in a way that meets current needs without harming future generations. |
| Name one technique that the fishing industry can use to make it more sustainable. | rotation, fishing gear review, harvest reduction, fishing bans |
| What is meant by the term "umbrella species?" | When a single species is placed on the endangered list and many other species benefit. |
| What is the total yearly value of the services Earth's natural ecosystems provide? | $30 trillion |
| Name one law that was passed to help protect natural resources. | EPA of 1970, Clean Air Act, Clean Water Act, Endangered Species Act |
| How many people can Earth support? | Unknown |
| What would Earth be like without the Greenhouse Effect? | Too cold to be habitable |
| What is the pH of normal rain? | 5.6 |
| What is cutting down an entire forest ecosystem called? | Clear cutting |
Created by:
jjanssen33
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