Biodiversity Concepts and Impacts

The video tutorial covers biodiversity, explaining its three levels: genetic, species, and ecosystem diversity. It discusses the importance of biodiversity in maintaining healthy environments and the ability to respond to changes. The video also explores environmental stressors, population bottlenecks, and the differences between specialist and generalist species. Finally, it explains how biodiversity is measured through richness and evenness.

What are the three types of biodiversity mentioned in the introduction?

• Genetic, Species, and Habitat

• Genetic, Ecosystem, and Climate

• Species, Habitat, and Chemical

• Ecosystem, Genetic, and Physical

Why is genetic diversity important for a species?

• It helps in photosynthesis.

• It increases the number of species in an ecosystem.

• It allows species to adapt to environmental changes.

• It reduces the need for specific habitats.

What is species richness?

• The number of different genes in a species

• The number of different species in an ecosystem

• The number of habitats in an ecosystem

• The number of ecosystems in a region

How does a higher species richness benefit an ecosystem?

• It reduces the need for genetic diversity.

• It decreases the ecosystem's ability to recover from disturbances.

• It makes the ecosystem more productive and resilient.

• It limits the number of habitats available.

What does ecosystem diversity refer to?

• The variety of ecosystems and habitats available

• The number of different species in an ecosystem

• The number of climatic stressors in an environment

• The variety of genes within a species

Which of the following is NOT an environmental stressor?

• Climatic

• Chemical

• Genetic

• Biological

What is a population bottleneck?

• An increase in species diversity

• A significant reduction in population size

• A rise in genetic diversity

• An expansion of habitat diversity

How can a population bottleneck affect genetic diversity?

• It increases genetic diversity.

• It stabilizes genetic diversity.

• It has no effect on genetic diversity.

• It reduces genetic diversity.

What is a characteristic of specialist species?

• They can thrive in a variety of environments.

• They require specific resources and conditions.

• They have a high tolerance for environmental changes.

• They are less likely to become endangered.

Which species is more likely to survive environmental changes, according to the video?

• Specialist species

• Extinct species

• Generalist species

• Endangered species