Term
| By fumigating several islands in the Florida Keys with methyl bromide, scientists demonstrated that: |
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Definition
| the rate of immigration of new species and extinction of species on an island is a function of island size and distance from the mainland. |
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Term
| A habitat with ____________________ disturbance is expected to have the greatest species richness. |
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Definition
| an intermediate amount of |
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Term
| How many species do biologists estimate to be currently on Earth? |
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Definition
| between five million and one hundred million |
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Term
| Classifying animals as endangered or threatened: |
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Definition
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Term
| Ozone is a molecule with a the chemical formula: |
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Definition
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Term
| What does is mean to say a species is a “threatened” species? |
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Definition
| That species is not in immediate danger of extinction but is likely to be so in the near future. |
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Term
| Conservation biologists employ the methods and knowledge derived from which of these other fields of biology? |
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Definition
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Term
| The first species of plants to grow in after a farm field is abandoned are often: |
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Definition
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Term
| An urban planner wants to build some new homes in a woodland area but wants to do so in a manner that is the least disruptive to its natural biodiversity levels. Which of the following choices is his best mode of action? |
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Definition
| To build all the homes on one side of the forest leaving the majority of the forest intact and grouped together. |
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Term
| Which of the following is NOT a troublesome exotic species? |
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Definition
| the common milkweed in the United States |
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Term
| Which of the following is NOT an indicator of increased extinction threat for a species? |
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Definition
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Term
| Biodiversity hotspots are defined by which two criteria? |
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Definition
| number of endemic species and degree of threat |
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Term
| Which of the following is NOT a correct statement about the zebra mussel in North America? |
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Definition
| They have a negative impact on all of the native species in the lakes and rivers they inhabit. |
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Term
| Species particularly vulnerable to extinction include: |
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Definition
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Term
| Which of the following is NOT an important greenhouse gas? |
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Definition
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Term
| According to the theory of island biogeography, which of the following islands should have the highest number of species at equilibrium? |
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Definition
| a large island near the continent |
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Term
| What bird, once the most abundant in North America, was hunted to extinction by means of shooting and trapping during the most of the 1800s? |
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Definition
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Term
| Biodiversity _________________ have been identified based on high biodiversity and imminent threats caused by human activities. |
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Definition
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Term
| One reason there is more species diversity in the tropics is: |
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Definition
| there is more solar energy available in the tropics than in the temperate zones. |
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Term
| In conservative biology, the concept of area effect states that: |
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Definition
| Both answers a) and c) are correct. |
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