Understanding Biodiversity and Its Importance

What is biodiversity?

• The variety of life in a particular habitat or ecosystem

• The number of species in a single ecosystem

• The genetic variation within a species

• The number of ecosystems in a region

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DOK Level 1: Recall

Which of the following is a major threat to biodiversity?

• Climate change

• Increased rainfall

• Natural selection

• Seasonal changes

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DOK Level 1: Recall

Explain why biodiversity is important for ecosystem stability.

• It increases the number of predators in an ecosystem.

• It ensures a variety of food sources and habitats, which supports resilience.

• It reduces the number of species in an ecosystem.

• It leads to the extinction of weaker species.

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DOK Level 2: Skill/Concept

Which of the following is a conservation strategy aimed at preserving biodiversity?

• Deforestation

• Habitat restoration

• Urban development

• Overfishing

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DOK Level 1: Recall

Identify an ecosystem service provided by biodiversity.

• Air pollution

• Soil erosion

• Pollination of crops

• Water contamination

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DOK Level 1: Recall

Discuss how invasive species can threaten biodiversity.

• They increase the genetic diversity of native species.

• They compete with native species for resources, often leading to declines in native populations.

• They help in the pollination of native plants.

• They provide new food sources for native species.

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DOK Level 2: Skill/Concept

What is a biodiversity hotspot?

• A region with a high level of endemic species that is under threat

• A region with no endangered species

• A region with a low level of species diversity

• A region with a stable climate

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DOK Level 1: Recall

Name an example of an endangered species.

• House Sparrow

• Bengal Tiger

• Domestic Cat

• Common Pigeon

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DOK Level 1: Recall

How do protected areas contribute to biodiversity conservation?

• They limit human access and activities, allowing ecosystems to function naturally.

• They increase the number of predators in an area.

• They promote urban development.

• They encourage deforestation.

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DOK Level 2: Skill/Concept

Why is genetic diversity important for species survival?

• It decreases the adaptability of species to environmental changes.

• It increases the likelihood of species extinction.

• It enhances the ability of species to adapt to changing environments and resist diseases.

• It reduces the number of offspring produced by a species.

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DOK Level 2: Skill/Concept