Biodiversity Review

True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

• True

• False

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Why is biodiversity important to ecosystems?

• It helps populations adapt to ecological changes.

• It increases at each level of the food chain.

• It provides more abiotic factors for the ecosystem.

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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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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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Define genetic diversity

• variation of genes within a species or population in a given area

• variety of ecosystems in a given area

• system made up of all the living and nonliving things in a given area

• disturbance in the environment conditions that cause genetic changes to occur in organisms

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Which statement best describes an example of low species diversity?

• A population of frogs has a wide variety of skin colors

• A marsh ecosystem is covered by a single species of cattail bulrushes

• A state park includes multiple forest, wetland, and freshwater ecosystems

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Which statement best describes an example of high species diversity?

• A pond ecosystem is populated by a single species of frogs

• A state park includes multiple forest and freshwater ecosystems with many different species of fish, frogs, and birds

• A desert ecosystem is populated only by organ pipe cacti, camels, and armadillo lizards

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Which of the following in not an example of a keystone species?

• Beavers

• Round Gobies

• Sharks

• Sea Otters

What is an invasive species?

• A native (naturally found) species which are added to an area. 
• A non-native (not naturally found) species added to an area. 
• A keystone species in an environment
• none of the above

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Which option is abiotic?

• Plants
• Bacteria
• Water
• Fungi

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