Chapter 7 - Biodiversity, Chesapeake Bay

Organize these levels of biodiversity:

• species diversity

• • variety of habitats, ecosystems, communities

• ecosystem diversity

• differences in DNA among individuals of the same species

• genetic diversity

• variety of species in a given area

Using the taxonomic names, which species of bear is least related to the others?

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Populations with a low genetic diversity are more likely to withstand environmental changes.

• True

• False

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All levels of biodiversity--species, genetic, and ecosystem diversity--are ​ (a)   .

• related
• not related

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Select the region of the planet that contains the most biodiversity

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Biodiversity provides which 3 important benefits:

• healthy ecosystems that function to purify air and water and control pests and diseases

• new medicines to treat disease

• a source of income through ecotourism

• extinction of native species

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Rank the order our textbook gives for the greatest causes of biodiversity loss today:

• Invasive Species

• Climate Change

• Overharvesting

• Habitat Loss

• Pollution

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Think: What is the reason that the Endangered Species Act (1973) forbids government and citizens from harming the habitats that endangered species live in?

• Habitats provide essential resources to the endangered animals that live there.

• The law is designed to prevent companies from making money.

• Habitats are not important to endangered species.

• The law is designed to restrict individual freedoms.

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Match the goals of each approach to conservation:

• Wildlife corridors

• Protect wildlife while helping local economies

• Ecotourism

• Increase population numbers in the wild

• Captive breeding

• Focus attention on areas where the greatest number of species can be protected

• Biodiversity hotspots

• Connect fragmented habitats

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What conservation technique is being shown in the picture:

• Wildlife corridor

• Cloning

• Legal efforts

• Pollution prevention

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