Biodiversity and Ecosystem Sustainability

The video discusses biodiversity and sustainability, explaining how biodiversity contributes to ecosystem health and stability. It defines biodiversity as the variety of genes, species, and ecosystems, highlighting its importance in providing food, medicine, and economic benefits. The video also covers sustainability, emphasizing the need for ecosystems to maintain their structure and function over time. It identifies threats to sustainability, such as disease and invasive species, and underscores the benefits of high biodiversity, including ecosystem resilience and cultural enrichment.

What does biodiversity primarily refer to?

• The number of ecosystems in a region

• The number of animals in a habitat

• The variety of genes, species, and ecosystems

• The amount of vegetation in an area

How does biodiversity contribute to the health of the biosphere?

• By eliminating invasive species

• By increasing the variety of species

• By reducing the number of species

• By promoting monocultures

What is a key aspect of sustainability in ecosystems?

• Elimination of all predators

• Rapid growth of species

• Constant human intervention

• Ability to maintain structure and function over time

Which of the following is NOT a threat to ecosystem sustainability?

• Increased biodiversity

• Limited resources

• Disease

• Human disturbance

Why is high biodiversity important for ecosystem sustainability?

• It decreases genetic variation

• It reduces the number of food web connections

• It increases the ecosystem's ability to withstand stress

• It leads to more competition among species

How does biodiversity benefit human health?

• By providing a source of new medicines

• By increasing the number of hospitals

• By reducing the need for medical research

• By eliminating all diseases

What role does biodiversity play in tourism?

• It attracts tourists through ecotourism

• It decreases the number of tourists

• It has no impact on tourism

• It only benefits local tourism

How does biodiversity support human cultures?

• By promoting a single global culture

• By eliminating traditional practices

• By providing resources for cultural practices

• By reducing cultural diversity

What is biodiversity's role in evolution?

• It hinders evolutionary processes

• It accelerates the extinction of species

• It prevents new species from emerging

• It acts as an insurance policy for life

Why is preserving biodiversity crucial for food security?

• It limits the variety of crops available

• It ensures a wide range of resistant plant varieties

• It promotes the use of a single crop species

• It reduces the need for agricultural research