Biology The Essentials
Quiz 20: Preserving Biodiversity
There Are ________ Parts Per Million of Carbon Dioxide in the Earth's
There are ________ parts per million of carbon dioxide in the Earth's atmosphere. A) 10 B) 17 C) 400 D) 125 E) 21
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The ozone layer is part of the A) ionosphere. B) stratosphere. C) troposphere. D) biosphere. E) limnetic zone.
A species that humans bring to an area where it did not previously occur is a(n) A) exotic species. B) native species. C) endemic species. D) existing species. E) endangered species.
To be considered ________,an introduced species must begin breeding in its new location and spread widely from its point of introduction causing destruction. A) resourceful B) harmful C) native D) dominant E) invasive
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