2.1 Introduction to Biodiversity

• What is biodiversity at its broadest definition?

  Variety of life on Earth
• Higher biodiversity can help ecosystems withstand environmental changes
• A forest with only one type of tree is more resilient to pests and diseases than a forest with multiple tree species.

  False
• What are the three main levels of biodiversity?

  Genetic, species, ecosystem
• Genetic diversity refers to the range of different genes
• The three levels of biodiversity interact to support healthy ecosystems.
• Match the level of biodiversity with its example:

  Genetic Diversity ↔️ Different breeds of dogs

  Species Diversity ↔️ Tropical rainforest

  Ecosystem Diversity ↔️ Deserts, forests, and wetlands
• Why is biodiversity crucial for maintaining ecosystem function?

  Supports healthy ecosystems
• Order the following aspects of biodiversity in terms of their importance for ecosystem function:

  1️⃣ Resilience

  2️⃣ Ecosystem Services

  3️⃣ Ecological Balance
• Ecosystems with higher biodiversity are more resilient to environmental disturbances
• A forest with diverse tree species is more resilient to pests and diseases.
• Biodiversity maintains ecological balance by regulating population sizes and preventing invasive species
• What are the three levels of biodiversity?

  Genetic, species, ecosystem
• Ecosystems with higher biodiversity are more resilient to environmental changes.
• Biodiversity provides essential ecosystem services like pollination, nutrient cycling, and pest control
• Match the aspect of biodiversity with its importance:

  Resilience ↔️ Ability to withstand disturbances

  Ecosystem Services ↔️ Pollination, pest control

  Ecological Balance ↔️ Regulates population sizes
• How does climate influence biodiversity?

  Determines survival conditions
• Higher altitudes typically have fewer species
• Ecosystems with diverse habitats support a wider range of species.
• What is the impact of human activities on biodiversity?

  Reduces species diversity
• What is genetic diversity?

  Variety of genes within a species
• Higher biodiversity helps ecosystems withstand environmental changes.
• What is an example of genetic diversity in dogs?

  Different breeds like Golden Retrievers
• A tropical rainforest is an example of species diversity
• Arrange the levels of biodiversity from smallest to largest scale:

  1️⃣ Genetic Diversity

  2️⃣ Species Diversity

  3️⃣ Ecosystem Diversity
• How does biodiversity contribute to ecosystem function?

  By maintaining ecological balance
• Biodiversity provides ecosystem services like pollination, nutrient cycling, and pest control
• Biodiversity maintains ecological balance by regulating population sizes.
• What are the key factors that influence biodiversity?

  Climate, altitude, habitat complexity
• Habitat destruction, pollution, and climate change significantly reduce biodiversity
• Pollinators like bees support plant biodiversity through species interactions.
• Match the threat to biodiversity with its definition:

  Habitat Destruction ↔️ Degradation of natural habitats

  Pollution ↔️ Introduction of harmful substances

  Climate Change ↔️ Alteration of global temperatures

  Invasive Species ↔️ Non-native species outcompeting native ones
• How do threats to biodiversity affect ecosystems?

  By disrupting their resilience
• Coral bleaching is an example of the impact of climate change
• Overfishing is a form of overexploitation that threatens marine biodiversity.