3.3 Human Impact on Biodiversity

• The variety of genes within a species is called genetic
• Clearing land for agriculture and urbanization leads to habitat
• Match the type of habitat destruction with its description:

  Deforestation ↔️ Clearing forests for timber

  Urbanization ↔️ Converting natural areas into cities

  Agricultural Expansion ↔️ Clearing land for farming
• Pollution reduces biodiversity by harming or killing species and disrupting ecosystems.


  True
• Air pollution is caused by industrial emissions, vehicle exhaust, and burning fossil fuels
• What agricultural practice can cause soil pollution?

  Use of pesticides
• Match the cause of invasive species with its example:

  Accidental Introduction ↔️ Zebra mussels in the Great Lakes

  Deliberate Introduction ↔️ Purple loosestrife for gardening
• Match the type of biodiversity with its definition:

  Genetic Diversity ↔️ Variety of genes within a species

  Species Diversity ↔️ Variety of different species

  Ecosystem Diversity ↔️ Variety of different ecosystems
• Overexploitation, such as excessive fishing, can drive species to extinction
• Pollution reduces biodiversity by harming species and disrupting ecosystems
• What is an example of accidental introduction of invasive species?

  Zebra mussels in the Great Lakes
• Changes in precipitation can lead to droughts or floods.


  True
• Changes in precipitation can lead to droughts or floods
• Overexploitation refers to the unsustainable use and extraction of natural resources
• Deforestation leads to the loss of forest habitats, resulting in species displacement and extinction
• Why is biodiversity crucial for ecosystem stability and resilience?

  Adapts to environmental changes
• The disruption of food webs due to biodiversity loss can lead to the decline of predator species
• Protected areas are designated land or marine areas for conservation
• Invasive species control involves monitoring and eradicating non-native species that threaten native biodiversity
• Biodiversity promotes ecosystem stability and resilience.


  True
• Human activities that degrade natural habitats pose a significant threat to global biodiversity.


  True
• Deforestation can lead to climate change
• Order the three main types of pollution from least to most directly impacting biodiversity:

  1️⃣ Air Pollution

  2️⃣ Water Pollution

  3️⃣ Soil Pollution
• Pollution directly reduces biodiversity by harming species and disrupting ecosystems
• Invasive species reduce biodiversity by outcompeting native populations.


  True
• Biodiversity promotes ecosystem stability, resilience, and productivity
• Order the consequences of deforestation:

  1️⃣ Loss of biodiversity

  2️⃣ Soil erosion

  3️⃣ Climate change
• Match the type of pollution with its key cause:

  Air Pollution ↔️ Industrial emissions

  Water Pollution ↔️ Agricultural chemicals

  Soil Pollution ↔️ Pesticides
• Invasive species reduce biodiversity by altering ecosystem structure
• What is an example of overfishing as a form of overexploitation?

  Depletion of fish populations
• Ocean acidification reduces the pH of oceans, harming marine organisms.


  True
• What is one impact of overfishing on biodiversity?

  Depletion of fish populations
• What is the impact of unsustainable harvesting on biodiversity?

  Reduction in medicinal plants
• The loss of a keystone species can disrupt food webs and lead to ecosystem collapse
• Decreased ecosystem productivity can result from the loss of pollinator species.


  True
• What is one example of sustainable resource management?

  Sustainable forestry
• What are some threats to biodiversity addressed by conservation strategies?

  Habitat destruction, overexploitation, invasive species
• What does the term 'biodiversity' refer to?

  Variety of living organisms
• Match the cause with its impact on biodiversity:

  Habitat Destruction ↔️ Population declines and extinctions

  Pollution ↔️ Harm to organisms and ecosystems

  Overexploitation ↔️ Depletion of natural resources

  Invasive Species ↔️ Displacement of native species
• What is the primary consequence of habitat destruction?

  Loss of biodiversity