biodiversity quiz

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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How can humans best help an endangered species avoid extinction?

• they can feed the animals
• they can put the animals in a zoo
• they can protect the animal’s habitat
• they can take the animal to new habitats

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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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What factor does NOT affect biodiversity?

• Urbanization
• Planting Native Plants
• Overfishing
• Pollution

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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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What does biodiversity mean?

• Only one species in an area.
• The different amount of species in an area
• All abiotic life
• Nitrogen fixation

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Invasive species alter the ecosystem by ______ in number quickly. This leads to ______ food for the native species.

• increasing, less

• increasing, more

• decreasing, less

• decreasing, more

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TRUE or FALSE? Invasive species can be introduced to an ecosystem accidentally/

• True

• False

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What is the relationship between a keystone species and its ecosystem

• A keystone species is always the top predator in an ecosystem.

• A keystone species is essential to maintain balance and biodiversity in its ecosystem.

• A keystone species provides energy to all other organisms in the ecosystem.

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Why are trees a natural resource?

• The leaves are green
• We use them to make paper, lumber, and other products.
• They are beautiful
• They grow back after they are cut down.

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