7.3.1 Biodiversity

• Genetic diversity refers to the variety of genes
• What does the term 'biodiversity' refer to in an ecosystem?

  Variety of living organisms
• What is species diversity in the context of biodiversity?

  Variety of species
• Match the component 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
• What are the three main components of biodiversity?

  Genetic, species, ecosystem
• What is the importance of ecosystem diversity?

  Provides ecological services
• Arrange the components of biodiversity from the smallest to the largest scale.

  1️⃣ Genetic diversity

  2️⃣ Species diversity

  3️⃣ Ecosystem diversity
• Human benefits from biodiversity include food, medicines, and clean water.
• What are the main threats to biodiversity?

  Habitat loss, overexploitation, pollution, climate change, invasive species
• Overexploitation can drive species to extinction.

  True
• Invasive species disrupt the natural balance of ecosystems.
• Match the conservation strategy with its benefit:

  Habitat restoration ↔️ Rebuilds degraded ecosystems

  Protected areas ↔️ Preserves natural environments

  Captive breeding ↔️ Boosts endangered species

  Legislation ↔️ Enforces conservation laws
• Enforcement is necessary for conservation legislation to be effective.


  True
• Biodiversity comprises genetic, species, and ecosystem diversity.

  True
• Arrange the components of biodiversity in increasing order of scale:

  1️⃣ Genetic diversity

  2️⃣ Species diversity

  3️⃣ Ecosystem diversity
• Genetic diversity enhances the adaptability of a species to environmental changes.
• Species diversity supports complex food webs and ecological interactions.

  True
• Higher biodiversity leads to more resilient ecosystems that can withstand disturbances.
• What is the definition of ecosystem stability?

  Maintaining structure and function
• Match the environmental service with its description:

  Pollination ↔️ Fertilizes crops

  Carbon sequestration ↔️ Reduces atmospheric CO2

  Climate regulation ↔️ Maintains weather patterns
• Habitat loss reduces available space and resources for species.
• How does climate change impact biodiversity?

  Disrupts ecosystems and forces species migration
• What are four common conservation strategies for biodiversity?

  Habitat restoration, protected areas, captive breeding, legislation
• Captive breeding is not a long-term solution for biodiversity conservation.