Biodiversity and Evolution Quiz
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Questions and Answers

Which condition demonstrates the highest risk of extinction for a species?

  • Near threatened
  • Vulnerable
  • Critically endangered (correct)
  • Data deficient
  • What is a consequence of decreased biodiversity in a habitat?

  • Lower risk of population extinction
  • Greater resilience to environmental changes
  • Enhanced species interaction
  • Increased vulnerability to changes (correct)
  • What does the Red List of Threatened Species primarily provide?

  • The population size of various species
  • Methods for species preservation
  • A list of common species in an area
  • The conservation status of biological species (correct)
  • Which factor is categorized as anthropogenic in relation to extinction causes?

    <p>Climate change (A)</p> Signup and view all the answers

    What happens to species as ecosystems become more affected by climate change?

    <p>Die due to inability to cope with rapid changes (C)</p> Signup and view all the answers

    What is the classification of a species that no longer exists in the wild but survives in captivity?

    <p>Extinct in the wild (A)</p> Signup and view all the answers

    Which of the following categories has the least risk of extinction?

    <p>Least concern (A)</p> Signup and view all the answers

    What impact does sea level rise have on biodiversity?

    <p>Threatens low-lying and coastal marsh habitats (B)</p> Signup and view all the answers

    What is a potential consequence of melting icebergs?

    <p>Receding shorelines (D)</p> Signup and view all the answers

    How can volcanic gases affect marine life?

    <p>By changing the chemical composition of water (A)</p> Signup and view all the answers

    What was one significant impact of a large asteroid hitting Earth?

    <p>The generation of tsunamis (D)</p> Signup and view all the answers

    How does climate change affect species in relation to diseases?

    <p>It decreases their ability to fend off disease (D)</p> Signup and view all the answers

    Which of the following is the leading cause of modern-day extinction?

    <p>Habitat destruction (B)</p> Signup and view all the answers

    What is habitat fragmentation, and why is it a concern for large predators?

    <p>It creates smaller hunting areas, leading to isolation (B)</p> Signup and view all the answers

    How does pollution impact species populations?

    <p>It disrupts life cycles and causes biodiversity decline (C)</p> Signup and view all the answers

    What is the effect of insecticides on non-target insects?

    <p>They can kill beneficial insects necessary for pollination (B)</p> Signup and view all the answers

    What can acid rain lead to in terms of wildlife impact?

    <p>Killing agricultural crops and fish (A)</p> Signup and view all the answers

    What is overexploitation primarily concerned with?

    <p>Excessive use of natural resources (C)</p> Signup and view all the answers

    What is the primary issue caused by invasive species?

    <p>Decrease in biodiversity (C)</p> Signup and view all the answers

    Which term describes a species that is at a high risk of extinction?

    <p>Endangered (D)</p> Signup and view all the answers

    Which of the following is a consequence of pollution in a habitat?

    <p>Species extinction (D)</p> Signup and view all the answers

    How do anthropogenic factors relate to species extinction?

    <p>They are caused by human activities (D)</p> Signup and view all the answers

    What is meant by the term 'invaded ecosystem'?

    <p>An ecosystem disrupted by non-native species (B)</p> Signup and view all the answers

    What primary factor is currently believed to contribute most to extinction?

    <p>Anthropogenic actions (A)</p> Signup and view all the answers

    Flashcards

    Biodiversity

    The variety of life in a habitat, measured by the number of different species.

    Evolution

    Changes in genetic makeup of a population over time.

    IUCN Red List

    A global list of threatened species, categorized by extinction risk.

    Extinct Species

    Species that no longer exist anywhere on Earth.

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    Extinct in the Wild

    Species existing only in captivity or protected areas.

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    Climate Change

    Significant changes in long-term weather patterns, often becoming warmer.

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    Anthropogenic factors

    Factors caused by human activities that have negative impact on biodiversity.

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    Sea-level rise

    Increase in the average global sea level due to factors like melting ice.

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    Acid Rain

    Rainwater contaminated by pollutants, primarily sulfur dioxide and nitrogen oxides, making it acidic.

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    Overexploitation

    The excessive use of a natural resource, particularly exceeding its sustainable rate of replenishment, leading to depletion.

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    Invasive Species

    Non-native species that disrupt the ecosystems they colonize by outcompeting native species for resources and altering habitat.

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    Habitat

    The natural environment where a species lives, providing all necessary resources for survival and reproduction.

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    Threatened Species

    Species facing a high risk of extinction in the near future due to factors like habitat loss, overexploitation, or disease.

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    Receding Shorelines

    The gradual retreat of shorelines due to factors like melting icebergs, typhoons, and storm surges.

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    Volcanic Impact on Marine Life

    Volcanic eruptions can release gases that are absorbed by water, altering its chemical composition and making it unsuitable for certain marine life.

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    Asteroid Impact and Extinction

    A large asteroid impact can cause devastating consequences, including seismic waves, tsunamis, and mass extinctions.

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    Climate Change and Disease Susceptibility

    Changing climate and landscapes can weaken species' defenses against diseases, making them more vulnerable to epidemics and potentially extinction.

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    Foot and Mouth Disease

    A highly contagious disease that affects livestock, potentially causing significant economic losses and posing a risk to human health.

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    Bird Flu

    A lethal disease that spreads between birds and can be fatal to humans, posing a significant public health threat.

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    Ebola Virus

    A deadly disease that primarily affects primates, but can spread to humans, leading to severe outbreaks and high mortality rates.

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    Habitat Destruction

    The leading cause of modern extinction, involving the removal or degradation of natural habitats due to human activities.

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    Deforestation

    The clearing of forests for non-forest use, resulting in habitat loss and biodiversity decline.

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    Insecticide Use and Biodiversity Loss

    The use of insecticides can kill non-target insects including beneficial species, disrupting pollination and affecting biodiversity.

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    Habitat Fragmentation

    The division of large habitats into smaller, isolated patches, threatening the survival of species that require large territories.

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    Pollution's Impact on Biodiversity

    Air, water, and soil pollution can disrupt life cycles, harm species' health, and contribute to biodiversity decline.

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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

    • 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.
    • 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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    Related Documents

    Biodiversity and Evolution PDF

    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.

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