7SC_10.4 Understanding Biodiversity

What does the term 'biodiversity' encompass?

• The variety of all life forms and ecosystems

• Only plant species and their ecosystems

• Just the genetic variations within species

• Only the variety of animal species

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Why is biodiversity not evenly spread across the planet?

• Land availability

• All of the above

• Climate conditions

• Human preferences

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Which area is known for high biodiversity?

• Coral reefs

• Urban areas

• Arctic regions

• Deserts

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How many species are estimated to exist according to biologist Robert May?

• Nearly 15 million

• Around 5 million

• Approximately 10 million

• About 1.2 million

What does genetic diversity refer to?

• Number of habitats available

• Different genes in all living species

• Differences within species

• Variety of ecosystems

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What is ecosystem diversity?

• Variety of genes

• Single ecosystem type

• Different species only

• Variety of habitats and ecological processes

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Which of the following is an example of species diversity?

• Many breeds of dogs at a dog show

• A community of living things in a small yard

• A huge maple tree that is 100 years old

• A garden filled with tomato plant varieties

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What can lead to the extinction of a species?

• Climate stability

• Natural evolution only

• Human activities only

• Both natural evolution and human activities

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How can humans help recover biodiversity?

• Focusing only on urban development

• By increasing industrial activities

• Through conservation and sustainable practices

• Ignoring the environmental issues

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What is a direct benefit of biodiversity to humans?

• Clean water and stable climate

• Entertainment

• Technological advancements

• Economic growth

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