Unit 2 Test REVIEW - Ecology & Biodiversity

Front

A region that includes tigers, eagles, lizards, fish, rabbits, and many other types of organisms would be described as having a high level of

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Species Diversity

Front

The biggest cause of biodiversity loss worldwide is...

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Habitat loss/habitat alteration

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Microevolution is...

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evolution that happens at the genetic level within a species

Front

A _____________ species is one who's impact on the ecosystem is far more important than expected based on its abundance. If it was removed then the entire ecosystem would collapse.

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Keystone

Front

High levels of biodiversity tend to have..

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A positive effect on an ecosystem's health, making it more stable

Front

One way that zoos and aquariums help increase wildlife populations is through

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captive breeding programs

Front

Which ecosystem would have the most primary productivity? Options: tundra, desert, tropical rain forest, taiga

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tropical rain forest

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Ecologists use similarities between ecosystems to classify them into broad categories based on their climates. These are called

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biomes

Front

Which Biome would have the lowest gross primary production? Options: coral reefs, rain forest, desert, salt marsh

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desert

Front

Water with a salinity that is greater than fresh water but less than saltwater is classified as

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brackish