Podcast
Questions and Answers
What is the definition of 'extirpation'?
What is the definition of 'extirpation'?
- The disappearance of every individual of a species from the entire planet
- Species that are particularly vulnerable to natural events or human activities
- The local disappearance of a species from a particular area (correct)
- Species that are in immediate danger of extinction
Which species classification is used for species that are likely to become endangered if changes are not made?
Which species classification is used for species that are likely to become endangered if changes are not made?
- Threatened (correct)
- Endangered
- Special Concern (Vulnerable)
- Extirpated
What is the estimated percentage of all species that have ever existed and are now extinct?
What is the estimated percentage of all species that have ever existed and are now extinct?
- 99% (correct)
- 90%
- 50%
- 75%
What is the natural process that usually occurs in a slow process, but may lead to extinction if the environment changes too quickly or drastically?
What is the natural process that usually occurs in a slow process, but may lead to extinction if the environment changes too quickly or drastically?
Which example best represents a species that is in immediate danger of extinction or extirpation?
Which example best represents a species that is in immediate danger of extinction or extirpation?
What is the term for the complete disappearance of every individual of a species from the entire planet?
What is the term for the complete disappearance of every individual of a species from the entire planet?
Which classification is used for species that are particularly vulnerable to natural events or human activities?
Which classification is used for species that are particularly vulnerable to natural events or human activities?
What is a cause of extinction due to overspecialization?
What is a cause of extinction due to overspecialization?
What is an example of in-situ conservation?
What is an example of in-situ conservation?
What contributes to habitat destruction?
What contributes to habitat destruction?
What is a strategy to preserve species?
What is a strategy to preserve species?
How is the spread of exotic species controlled?
How is the spread of exotic species controlled?
What is a consequence of extinction and extirpation?
What is a consequence of extinction and extirpation?
What does in-situ conservation involve?
What does in-situ conservation involve?
What is a cause of extinction related to human activities?
What is a cause of extinction related to human activities?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
Which strategy to preserve species involves the restoration of ecosystems and species, and resource use policies?
Which strategy to preserve species involves the restoration of ecosystems and species, and resource use policies?
What contributes to habitat destruction as a cause of extinction?
What contributes to habitat destruction as a cause of extinction?
What is the term for the process involving maintaining endangered species in zoos and seed banks?
What is the term for the process involving maintaining endangered species in zoos and seed banks?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is the term for the process of improving crops, herds, and medical products using biotechnology, with associated risks and controversies?
What is the term for the process of improving crops, herds, and medical products using biotechnology, with associated risks and controversies?
What is the term for the process of overpopulation leading to lack of food and contributing to extinction?
What is the term for the process of overpopulation leading to lack of food and contributing to extinction?
What can lead to extinction when organisms have adaptations suited to narrow environmental conditions?
What can lead to extinction when organisms have adaptations suited to narrow environmental conditions?
What can lead to habitat destruction?
What can lead to habitat destruction?
What has led to the extinction of species like the Plains Bison and African Elephant?
What has led to the extinction of species like the Plains Bison and African Elephant?
What reduces biological diversity and can affect other species that rely on them as a food source?
What reduces biological diversity and can affect other species that rely on them as a food source?
What strategy involves maintaining organisms in their natural environment, such as in national and provincial parks?
What strategy involves maintaining organisms in their natural environment, such as in national and provincial parks?
What is achieved through government policies to protect endangered species?
What is achieved through government policies to protect endangered species?
What involves maintaining endangered species in zoos and seed banks?
What involves maintaining endangered species in zoos and seed banks?
What technology is used to improve crops, herds, and medical products, but has risks and controversies?
What technology is used to improve crops, herds, and medical products, but has risks and controversies?
What is the term for the local disappearance of a species from a particular area?
What is the term for the local disappearance of a species from a particular area?
What is the term for species that are particularly vulnerable to natural events or human activities?
What is the term for species that are particularly vulnerable to natural events or human activities?
What is the estimated percentage of all species that have ever existed and are now extinct?
What is the estimated percentage of all species that have ever existed and are now extinct?
What is an example of a species in immediate danger of extinction or extirpation?
What is an example of a species in immediate danger of extinction or extirpation?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is a cause of extinction related to human activities?
What is a cause of extinction related to human activities?
What is the term for the process involving maintaining endangered species in zoos and seed banks?
What is the term for the process involving maintaining endangered species in zoos and seed banks?
What is a strategy to preserve species that involves the restoration of ecosystems and species, and resource use policies?
What is a strategy to preserve species that involves the restoration of ecosystems and species, and resource use policies?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
What is a cause of extinction due to overspecialization?
What is a cause of extinction due to overspecialization?
What is the term for the process of overpopulation leading to lack of food and contributing to extinction?
What is the term for the process of overpopulation leading to lack of food and contributing to extinction?
What can lead to extinction when organisms have adaptations suited to narrow environmental conditions?
What can lead to extinction when organisms have adaptations suited to narrow environmental conditions?
What is the term for the process of improving crops, herds, and medical products using biotechnology, with associated risks and controversies?
What is the term for the process of improving crops, herds, and medical products using biotechnology, with associated risks and controversies?
What is the term for the local disappearance of a species from a particular area?
What is the term for the local disappearance of a species from a particular area?
What is the term for the process involving maintaining organisms in their natural environment, such as in national and provincial parks?
What is the term for the process involving maintaining organisms in their natural environment, such as in national and provincial parks?
What involves maintaining endangered species in zoos and seed banks?
What involves maintaining endangered species in zoos and seed banks?
What is the term for the process of overpopulation leading to lack of food and contributing to extinction?
What is the term for the process of overpopulation leading to lack of food and contributing to extinction?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is a cause of extinction related to human activities?
What is a cause of extinction related to human activities?
What is achieved through government policies to protect endangered species?
What is achieved through government policies to protect endangered species?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
What is the term for the process of maintaining endangered species in zoos and seed banks?
What is the term for the process of maintaining endangered species in zoos and seed banks?
What is a potential risk associated with biotechnology, such as genetic engineering, artificial reproductive technology, and cloning?
What is a potential risk associated with biotechnology, such as genetic engineering, artificial reproductive technology, and cloning?
What can lead to extinction when organisms have adaptations suited to narrow environmental conditions?
What can lead to extinction when organisms have adaptations suited to narrow environmental conditions?
What is a cause of extinction related to human activities?
What is a cause of extinction related to human activities?
What contributes to habitat destruction as a cause of extinction?
What contributes to habitat destruction as a cause of extinction?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
What is the term for the process that involves maintaining organisms in their natural environment, such as in national and provincial parks?
What has led to the extinction of species like the Plains Bison and African Elephant?
What has led to the extinction of species like the Plains Bison and African Elephant?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is the term for the reduction of biological diversity due to extinction and extirpation?
What is a strategy to preserve species?
What is a strategy to preserve species?
What is achieved through government policies to protect endangered species?
What is achieved through government policies to protect endangered species?
What is the term for the process involving maintaining endangered species in zoos and seed banks?
What is the term for the process involving maintaining endangered species in zoos and seed banks?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the introduction of non-native species by migrating humans, leading to competition with native species?
What is the term for the process of improving crops, herds, and medical products using biotechnology, with associated risks and controversies?
What is the term for the process of improving crops, herds, and medical products using biotechnology, with associated risks and controversies?
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Study Notes
Causes of Extinction and Extirpations
- Causes of extinction include catastrophic events, lack of food due to overpopulation, disease, habitat destruction, introduction of non-native species, and over-hunting
- Habitat destruction is caused by construction, agricultural development, logging, damming of rivers, and pollution
- Overspecialization can lead to extinction when organisms have adaptations suited to narrow environmental conditions
- Introduction of non-native species by migrating humans leads to competition with native species
- Over-hunting, such as unsustainable hunting, has led to the extinction of species like the Plains Bison and African Elephant
- Extinction and extirpation reduce biological diversity and can affect other species that rely on them as a food source
- Strategies to preserve species include diversity, protected areas, restoration of ecosystems and species, resource use policies, and controlling the spread of exotic species
- In-situ conservation involves maintaining organisms in their natural environment, such as in national and provincial parks
- Resource use policies, including government laws, help protect endangered species
- Controlling the spread of exotic species is achieved through government policies
- Conservation of genetic resources involves ex-situ conservation, such as maintaining endangered species in zoos and seed banks
- Biotechnology, including genetic engineering, artificial reproductive technology, and cloning, is used to improve crops, herds, and medical products, but has risks and controversies, such as in the case of genetically altering humans to create designer babies.
Causes of Extinction and Extirpations
- Causes of extinction include catastrophic events, lack of food due to overpopulation, disease, habitat destruction, introduction of non-native species, and over-hunting
- Habitat destruction is caused by construction, agricultural development, logging, damming of rivers, and pollution
- Overspecialization can lead to extinction when organisms have adaptations suited to narrow environmental conditions
- Introduction of non-native species by migrating humans leads to competition with native species
- Over-hunting, such as unsustainable hunting, has led to the extinction of species like the Plains Bison and African Elephant
- Extinction and extirpation reduce biological diversity and can affect other species that rely on them as a food source
- Strategies to preserve species include diversity, protected areas, restoration of ecosystems and species, resource use policies, and controlling the spread of exotic species
- In-situ conservation involves maintaining organisms in their natural environment, such as in national and provincial parks
- Resource use policies, including government laws, help protect endangered species
- Controlling the spread of exotic species is achieved through government policies
- Conservation of genetic resources involves ex-situ conservation, such as maintaining endangered species in zoos and seed banks
- Biotechnology, including genetic engineering, artificial reproductive technology, and cloning, is used to improve crops, herds, and medical products, but has risks and controversies, such as in the case of genetically altering humans to create designer babies.
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