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Ch. 10 Biodiversity
Impastato/Crovato
| Question | Answer |
|---|---|
| How many species are thought to inhabit the Earth? | 10 million |
| What percentage of extinctions are caused by habitat destruction? | 75% |
| The number and variety of species on Earth is called _________ | biodiversity |
| the illegal hunting and slaughter of African elephants for their ivory tusks is also known as ______________ | poaching |
| Any species with a declining population that could become endangered is a __________________________ | threatened species |
| A ___________ is any species likely to become extinct if it's not protected. | endangered species |
| The ____________ is a treaty to preserve biodiversity that resulted from the Earth Summit in 1992 | Biodiversity Treaty |
| The death of many species in a relatively short time is known as ________________ | mass extinction |
| A ________ is an organism that is critical to an ecosystem's functioning. | keystone species |
| The kind of diversity represented by all the different genes found in a population is called _______________ | genetic diversity |
| The Florida panther is an ______________ species as a result of habitat destruction. | endangered species |
| The Amazon rain forest is an example of a habitat with a high species variability known as a _____________ | hotspot |
| A __________________ program is being used to help increase the population of California condors. | captive breeding |
| _________ caused the eggs of the Bald Eagle to softened and drastically reduced their numbers. | DDT |
| This group helped stop the poaching of elephants for their ivory tusks _____ | CITIES |
| An endangered species is ______ a. a species in danger of extinction b. an organism brought to a place where it has not lived before c. a species that has disappeared entirely | a. a species in danger of extinction |
| What are 3 ways humans cause extinctions? | 1) habitat destruction 2) invasive species 3) use of pesticides, cleaning agents, and other chemicals |
| In what part of the world are the greatest number of extinction occurring? | tropical rain forest |
| The International Union for Conservation of Nature and Natural Resources (IUCN), is a ________________________________________ | collaboration of about 200 governmental agencies and 700 private conservation groups from around the world |
| The current rate of species extinction is ______________ | attributable to the actions of humans |
| The fact that organisms are adapted to survive in particular environments help to explain why _____________________________ | habitat destruction accounts for most extinctions |
| The level of biodiversity that involves a variety of habitats and communities is _____________ | ecosystem diversity |
| What are 3 areas of the United States represent ecosystems with high levels of biodiversity? | coastal California, Hawaiian Islands, and Florida Everglades |
| Where are many critical biodiversity hotspots located? | islands, tropical rain forests, and coastal areas |
| What would be the most effective in slowing the loss of biodiversity? | creating large parks/preserves in biodiversity hotspots |
| According to biologists, what percentage of species have become or are expected to become extinct between 1900 and 2100? | 25 percent |
| How many mass extinctions have there been in the past? | 5 |
| What level of biodiversity is most commonly equated with the overall concept of biodiversity? | species diversity |
| What groups of organisms are most in danger of extinction? | those with small populations and that migrate or need special habitats |
| The major human causes of extinction today are ______ a. hunting and destroying habitats b. polluting and introducing non-native species c. both (a) and (b) | c. both (a) and (b) |
| What is NOT an invasive species in our area? | Cahaba Pebble Snail |
| Reduction in the sea otter population affected the Pacific coast ecosystem by removing a ______________________ | keystone species |
| The Gopher Tortoise is threatened in the state of Alabama because of ______ | cars |
| The Alabama Sturgeon is an example of _____________ | the living dead |
| Why did the Dodo bird go extinct? | over hunting |
| Who is an Alabama native who is known as the father of "sociobiology" and "biodiversity" | EO Wilson |
| An _______ is an organism that is not native to a particular region. | exotic species |
| Fire Ants in the southeastern United States are an example of an _________ | invasive species |
| q |