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Questions and Answers
Which condition demonstrates the highest risk of extinction for a species?
Which condition demonstrates the highest risk of extinction for a species?
What is a consequence of decreased biodiversity in a habitat?
What is a consequence of decreased biodiversity in a habitat?
What does the Red List of Threatened Species primarily provide?
What does the Red List of Threatened Species primarily provide?
Which factor is categorized as anthropogenic in relation to extinction causes?
Which factor is categorized as anthropogenic in relation to extinction causes?
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What happens to species as ecosystems become more affected by climate change?
What happens to species as ecosystems become more affected by climate change?
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What is the classification of a species that no longer exists in the wild but survives in captivity?
What is the classification of a species that no longer exists in the wild but survives in captivity?
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Which of the following categories has the least risk of extinction?
Which of the following categories has the least risk of extinction?
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What impact does sea level rise have on biodiversity?
What impact does sea level rise have on biodiversity?
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What is a potential consequence of melting icebergs?
What is a potential consequence of melting icebergs?
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How can volcanic gases affect marine life?
How can volcanic gases affect marine life?
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What was one significant impact of a large asteroid hitting Earth?
What was one significant impact of a large asteroid hitting Earth?
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How does climate change affect species in relation to diseases?
How does climate change affect species in relation to diseases?
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Which of the following is the leading cause of modern-day extinction?
Which of the following is the leading cause of modern-day extinction?
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What is habitat fragmentation, and why is it a concern for large predators?
What is habitat fragmentation, and why is it a concern for large predators?
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How does pollution impact species populations?
How does pollution impact species populations?
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What is the effect of insecticides on non-target insects?
What is the effect of insecticides on non-target insects?
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What can acid rain lead to in terms of wildlife impact?
What can acid rain lead to in terms of wildlife impact?
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What is overexploitation primarily concerned with?
What is overexploitation primarily concerned with?
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What is the primary issue caused by invasive species?
What is the primary issue caused by invasive species?
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Which term describes a species that is at a high risk of extinction?
Which term describes a species that is at a high risk of extinction?
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Which of the following is a consequence of pollution in a habitat?
Which of the following is a consequence of pollution in a habitat?
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How do anthropogenic factors relate to species extinction?
How do anthropogenic factors relate to species extinction?
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What is meant by the term 'invaded ecosystem'?
What is meant by the term 'invaded ecosystem'?
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What primary factor is currently believed to contribute most to extinction?
What primary factor is currently believed to contribute most to extinction?
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Study Notes
Biodiversity and Evolution
- Biodiversity, also called biological diversity, refers to the variety of plant and animal species in a specific habitat. More diverse species mean better biodiversity. Less diverse species mean greater vulnerability to change.
- A habitat is the place where specific species live.
Evolution
- Evolution is a change in the genetic makeup of a population over multiple generations.
IUCN
- The International Union for the Conservation of Nature (IUCN) is an organization promoting research and studies on preserving worldwide flora and fauna.
Red List of Threatened Species
- The Red List is a comprehensive inventory of the global conservation status of biological species.
Categories of Species in the Red List
- Extinct: No living species of that kind remain.
- Extinct in the Wild: The species only survives in captivity.
- Critically Endangered: Extremely high risk of extinction.
- Endangered: High risk of extinction
- Vulnerable: High risk of endangerment
- Near Threatened: Likely to become endangered in the near future.
- Least Concern: Still found abundantly in their environment.
- Data Deficient: Insufficient data for evaluation.
- Not Evaluated: No data available.
Extinction
- Extinction occurs when a species fails to adapt to rapid environmental changes.
Causes of Extinction
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Natural Factors:
- Climate change: Significant variation in weather conditions (warming, cooling, etc.), over long periods.
- Changes in sea level or currents: Melting polar ice and glaciers, receding shorelines.
- Meteor, comet, or asteroid strikes: Large impacts causing seismic waves, tsunamis and changes to environments.
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Anthropogenic (Human-Made) Factors:
- Habitat destruction: Deforestation, converting forests into other land uses, and clearing land.
- Pollution: Air, water, and soil pollution negatively impacting populations and biodiversity.
- Overexploitation: Overuse of natural resources (e.g., harvesting).
- Introduction of invasive species: Non-native species displacing native species.
- Diseases and epidemics: Species becoming susceptible to disease due to changing climates.
- Volcanic eruptions: Massive damage and changes in climate.
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Description
Test your knowledge on biodiversity, evolution, and conservation efforts. This quiz covers key concepts from species variety to the conservation status of various organisms. Explore terms like IUCN and the Red List categories.
