Biodiversity k1m7

Ch. 5 Quiz Student: ___________________________________________________________________________

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The location of specific biomes can be predicted based on A.the Coriolis Effect. B.the Second Law of Thermodynamics. C.precipitation and temperature. D.seasonal variations in sunspots. E.large landforms in the area. Use the following graph to answer the question.

2.

Desert biomes would fall in the area marked by the letter A.A. B.B. C.C. D.D. E.E.

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3.

Temperate forest biomes would fall in the area marked by the letter A.A. B.B. C.C. D.D. E.E.

4.

The area marked "A" has a A.wide precipitation range and narrow temperature range. B.narrow precipitation and temperature range. C.wide precipitation and temperature range. D.wide temperature range and narrow precipitation range. E.varying temperature and narrow precipitation range.

5.

Historically, the greatest threat to grasslands has been A.damage by off-road vehicles. B.air pollution. C.conversion to farmland. D.global climate change. E.mineral extraction.

6.

One biome type that has not been as badly threatened as other biomes is A.arctic tundra. B.tropical rainforests. C.grasslands. D.temperate forests. E.southern pine forests.

7.

Ecological diversity is a measure of the number of A.different kinds of organisms within a community or ecosystem. B.different versions of the same gene in an ecological community. C.sizes, colors, and shapes of organisms within an ecological community. D.niches, trophic levels, and ecological processes of a biological community. E.different species in an ecosystem.

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8.

Habitat fragmentation usually leads to a(n) A.decrease in biodiversity. B.reduction in the number of introduced species. C.increase in biodiversity due to the isolated populations. D.increase in the number of introduced species. E.more stable environment.

9.

The main reason for the current high rate of animal extinctions is A.uncontrolled sport hunting in the developed world. B.commercial harvesting of wildlife in Africa. C.drought conditions caused by the greenhouse effect. D.habitat destruction worldwide. E.None of these by themselves cause high rates of animal extinctions, but together they combine to cause high rates.

10. Which of the following is not a benefit of high biodiversity? A.aesthetic and cultural value B.potential medicinal value C.potential sources of food D.ecological value E.All of these are benefits of biodiversity. 11. The giant panda is considered to be a _________________ species. A.keystone B.umbrella C.flagship D.indicator E.principal

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12. In contrast with the ______________, the soil of the ______________ is more nutrient-rich and this type of biome has fewer insects, parasites, and fungal diseases. Therefore, in many places, these areas are highly endangered. A.temperate grasslands; tropical seasonal forest B.tropical rainforest; tropical seasonal forest C.tundra; boreal forests D.tropical seasonal forest; tropical rainforest E.boreal forests; tundra 13. We are usually referring to species diversity when we talk about biodiversity. However, genetic diversity is also important to ecological systems because diverse genes A.increase the efficiency and productivity of a system because all niches are filled. B.allow an individual organism to adapt to its changing environment. C.are necessary for a population to evolve in a changing environment. D.lead to diverse ecological processes in a biological community. E.are important for a balanced ecosystem. 14. Species diversity is most concentrated in A.North America and Europe. B.South America, Africa, and Southeast Asia. C.South Africa, Australia, and Europe. D.Oceania, East Asia, and Antarctica. E.North America, South America, and Africa 15. Humid tropical forests have extraordinary biological diversity A.because of the very fertile tropical soils. B.because rainfall dissolves soil nutrients and makes them available to plants. C.because water is not a limiting factor. D.despite a complete absence of nutrients in the environment. E.despite the poor, weathered soils.

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16. What biome is characterized by moderate temperatures and abundant precipitation? A.chaparral B.tropical rainforest C.temperate rainforest D.taiga E.No biome has moderate temperatures and abundant precipitation.

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Ch. 5 Quiz Key 1. C 2. A 3. B 4. D 5. C 6. A 7. D 8. A 9. D 10. E 11. C 12. B 13. C 14. B 15. E 16. C

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Ch. 5 Quiz Summary Category Cunningham - 005 Chapter...

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# of Questions 17