Invasive Species

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Biodiversity refers to

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the variety of species on Earth

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When taken to a new habitat, non-native plants often threaten native plants of the new habitat. Why do they do this? Options: Non-native plants are able to mutate rapidly, Non-native plants cause native animals to relocate, Non-native plants are able to be used for medicine, Non-native plants compete with native plants for resources

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Non-native plants compete with native plants for resources

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What effect will an invasive species have on the carrying capacity of an ecosystem? Options: The carrying capacity will increase, The carrying capacity for everyone will decrease, The carrying capacity will only decrease for those in competition for same resource, The carrying capacity for all animals will stay the same

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The carrying capacity will only decrease for those in competition for same resource

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Kudzu has overgrown many parts of southern Missouri and native ground plants have disappeared from the area. This is an example of:

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Competition occurring between the native and invasive species

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The field mouse population in Australia has grown so fast that they eat an average of  $4 billion of wheat every year. Their fast growth is caused by: A. The mice like to reproduce, B. A lack of a native species to eat the field mouse, C. Abundant food supply, Both B and C

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Both B and C

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How did the zebra mussels end up in the Great Lakes? Options: In ballast tanks of ships, They were intentionally released, They have always been in the Great Lakes, That's not a zebra mussel

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In ballast tanks of ships

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These were released in Australia to eat cane beetles, but now they are an invasive species and number in the millions.

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Cane toad

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What makes a species invasive? Options: Moving to a new ecosystem and taking resources from natives, Not having papers, Species that can't adapt, Plants that take up too much space

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Moving to a new ecosystem and taking resources from natives

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What kind of organisms can become invasive? Lions, Tigers, Bears, Plants, Animals, or Pathogens

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Plants, Animals, or Pathogens

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If a blue catfish is introduced and eats the large fish who eat the smaller fish, what will happen to the population of the smaller fish?

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Increase