4.2.1 Biodiversity concepts

• Species diversity is defined as the number and variety of different species in an area
• Match the level of biodiversity with its definition:

  Species Diversity ↔️ Number and variety of species

  Genetic Diversity ↔️ Variety of genetic information

  Ecosystem Diversity ↔️ Variety of ecosystems
• Genetic diversity makes species less vulnerable to diseases and pests
• What role does species biodiversity play in an ecosystem?

  Maintaining stability
• Species biodiversity refers to the variety of different species living in an ecosystem
• Species diversity supports complex food webs, enhancing the flow of energy and nutrients.


  True
• Conserving species biodiversity is critical for the long-term health of ecosystems
• What is a key characteristic of forests in terms of ecosystem diversity?

  Habitat for diverse species
• Order the following ecosystems based on their primary characteristics:

  1️⃣ Forests: Regulate water and nutrient cycles

  2️⃣ Wetlands: Filter pollutants and control floods

  3️⃣ Grasslands: Support grazing animals and maintain soil fertility

  4️⃣ Oceans: Support marine life and regulate climate
• What is the definition of biodiversity?

  Variety of living organisms
• Match the type of biodiversity with its definition:

  Species diversity ↔️ Number and variety of species

  Genetic diversity ↔️ Variety of genetic information

  Ecosystem diversity ↔️ Variety of different ecosystems
• What are the three levels of biodiversity?

  Species, genetic, ecosystem
• Ecosystem diversity includes landscapes with forests, lakes, and meadows.

  True
• Genetic biodiversity reduces vulnerability to diseases and pests by diversifying genetic traits
• Arrange the following ecological concepts in a logical order to explain their interconnectedness:

  1️⃣ Ecosystem diversity: Variety of different ecosystems

  2️⃣ Species diversity: Variety of different species

  3️⃣ Genetic diversity: Variety of genetic information

  4️⃣ Ecosystem stability: Resilience to environmental changes
• Diverse ecosystems are more resilient to environmental changes due to their stability
• Match the significance of biodiversity with its explanation:

  Food Web Support ↔️ Enhances energy and nutrient flow

  Resource Provisioning ↔️ Offers food, timber, and raw materials

  Ecological Services ↔️ Supports pollination, water purification

  Medicinal Resources ↔️ Provides compounds for disease treatment
• What type of resources do diverse species provide for humans?

  Food, timber, and raw materials
• Ecosystem diversity refers to the variety of different ecosystems, such as forests, wetlands, grasslands, and oceans
• What does biodiversity refer to in a given area?

  Variety of living organisms
• Biodiversity is important for maintaining the health and stability of ecosystems.

  True
• Why is genetic biodiversity important within a species?

  Adaptability to change
• Maintaining genetic biodiversity is crucial for the long-term survival of species.


  True
• Maintaining genetic biodiversity is crucial for the stability of ecosystems.


  True
• Why is species biodiversity important for ecosystem stability?

  Ensures all niches are filled
• Match the ecological service with its explanation:

  Pollination ↔️ Supports plant reproduction

  Nutrient cycling ↔️ Maintains soil fertility

  Water purification ↔️ Filters pollutants in water
• Ecosystem diversity refers to the variety of different ecosystems in a given area.

  True
• Wetlands are transitional areas between land and water, which filter pollutants
• Maintaining ecosystem diversity ensures essential ecological services like carbon sequestration.


  True
• Species diversity refers to the number and variety of different species in an area
• Biodiversity is important for maintaining the health and stability of ecosystems.


  True
• Species diversity refers to the number and variety of different species in an area
• Why is genetic biodiversity important for a species?

  Enables adaptability
• Genetic biodiversity supports the overall health and balance of ecosystems.


  True
• What does species biodiversity refer to?

  Variety of species in ecosystems
• Species diversity enhances the flow of energy and nutrients in ecosystems.


  True
• Conserving species biodiversity is crucial for the long-term health of ecosystems.

  True
• Match the ecosystem type with its key characteristics:

  Forests ↔️ Dominated by trees, regulate water cycles

  Wetlands ↔️ Filter pollutants, provide flood control

  Grasslands ↔️ Support grazing animals, maintain soil fertility

  Oceans ↔️ Regulate global climate, support marine life
• Why is maintaining ecosystem diversity important for the environment?

  Ensures ecological services are provided
• What are the two criteria for designating biodiversity hotspots?

  Endemic plants and habitat loss