Biodiversity

Why is biodiversity so important?

• Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
• Because it’s better to have only one variation of each species.
• Because it better to only have a few species on Earth.
• Honestly, I have no idea what biodiversity is!

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High biodiversity makes the food web more complex and better able to support the most species, even if some populations decrease.

• True

• False

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High biodiversity makes it more likely that the ecosystem will be able to keep functioning after a disturbance, such as disease or natural disaster.

• True

• False

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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Which habitat exhibits the greatest biodiversity?

• A habitat with 15 different species with about 300 individuals each
• A habitat with 10 different species with about 75 individuals each
• A habitat with 4 different species with about 150 individuals each
• A habitat with only one species with about 2000 individual

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What are some ways we can help in maintaining biodiversity?

• Get involved with ecological restoration in your area.

• Prevent invasive species from overpopulating.

• Don't use chemical pesticides on crops.

• All of the above

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Biodiversity is important as most medicines are derived from plants and

• animal horns

• fungi

• chemicals

• protist

Which of the following is NOT a threat to global biodiversity?

• overharvesting

• disease

• exotic and invasive species

• habitat destruction

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Biodiversity hotspots should be protected because of their ___ numbers of endemic species.

• low

• high

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Which of these is NOT a major threat to the California Floristic Province?

• land use for agriculture and housing

• dam construction

• overfishing

• mining

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