Refresher Year 12 Enviro

the variety of life in the world or in a particular habitat or ecosystem

• biodiversity

• demography

• carrying capacity

• poaching

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NGSS.MS-LS2-5

species that are native to and found only within a limited area

• endemic

• exotic

• endangered

• extinct

How many species are estimated to be living on Earth?

• between 10,000 and 100,000

• between 1 and 2 million

• between 500,000 and 1 million

• between 10 and 50 million

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Which of the following would be most effective in slowing the loss of biodiversity?

• creating large parks/preserves in biodiversity hotspots

• requiring every country to maintain a seed bank

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NGSS.MS-LS2-5

The level of biodiversity that involves a variety of habits and communities is _____ diversity.

• ecosystem

• population

• genetic

• species

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NGSS.MS-LS2-5

What level of biodiversity is most commonly equated with the overall concept of biodiversity?

• genetic

• ecosystem

• species

Why is biodiversity important to ecosystems?

• It helps populations adapt to ecological changes.

• It increases at each level of the food chain.

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NGSS.MS-LS2-5

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Currently sharks are on a rapid decline due to overfishing. If sharks go extinct will this affect the biodiversity of the ocean?

• No, sharks are not important.
• No, sharks will only affect the seal populations.
• Yes, it will disrupt the entire food chain in the ocean.
• Yes, but only a little.

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NGSS.MS-LS2-4

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Biodiversity, aka biological diversity, usually refers to

• the same species in a general location

• the number of different species in a given area

• the number of animal species in a given area

• the number of plant species in a given area

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NGSS.MS-LS2-5

What is the difference between biotic and abiotic?

• Biotic are non-living things
• Abiotic are living organisms
• Biotic is life,
  Abiotic is non-living
• Biotic is non-living, Abiotic is living

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