Biodiversity & Environmental Change

What does the term Biodiversity mean?

• a wide variety of plants and animals in an ecosystem

• an ecosystem composed mostly of plants

• only a few types of plants and animals in an ecosystem

• an ecosystem composed mostly of animals

Which of the following describes the importance of biodiversity to an ecosystem?

• a. People like to be able to see all the different plants and animals
• b. If there aren�t all the different species, there will be resources that aren�t being used
• c. Biodiversity is not as important as many people think
• d. Biodiversity can help minimize the effects of losing a species.

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When there is higher biodiversity

• more organisms are likely to die because they can't adapt to environmental changes.
• there is less diversity.
• there is more diversity and higher sustainability of life.
• there is more diversity and lower sustainability of life

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What is true about sustainability?

• Having a small number of species increases biodiversity

• Sustainability is how organisms change over time

• Sustainability is how much rainfall and sunlight an ecosystem receives

• The more different types of species you have (biodiversity) the better an ecosystem can sustain itself

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When biodiversity decreases

• Sustainability also decreases

• Sustainability remains the same

• Sustainability increases

• Sustainability is not impacted

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A plant nursery only grew one type of tomato. All of their tomatoes died from the same disease. What was most likely true of the tomato plant population?

• a. It had too little biodiversity
• b. It had a lot of resistance to disease
• c. It had a few plants that were resistant to disease
• d. It had too much genetic variation

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 Which biome is more likely to survive a change in the environment?

• High (rich) biodiversity
• Low (poor) biodiversity

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Food Web B is an example of...

• Low biodiversity and low sustainability. If the producer dies then all the food web will suffer.

• High biodiversity and high sustainability. If an organism is removed the food web will continue with no effect.

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A certain area of the Indian ocean is expected to dry up and become a desert over thousands of years. What will happen to the sustainability of this ocean?

• Sustainability would increase because the number of species would increase

• Sustainability would remain the same

• Sustainability would decrease because the number of species would decrease

• Not enough information is given

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A hurricane hit a tundra and a forest. A tundra is less biodiverse than the forest. Which biome would be impacted the most?

• The forest because it has more species and it wouldn't be able to sustain itself as well as the tundra

• They would be impacted the same

• The forest because it has more producers

• The tundra because it has less species and it wouldn't be able to sustain itself as well as the forest

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