| 11. | The refuge is in the Upper Sonoran life zone characterized by semi-desert vegetation and grassland.
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| 12. | Castle Rock is within the Colorado Foothills Life Zone.
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| 13. | QUESTION : Who was C . Hart Merriam, and what are " life zones "?
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| 14. | So I've just started "'Holdridge life zones "'( maybe that should be renamed to something singular ).
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| 15. | The area has extremely diverse ecological composition, which includes five of seven major life zones in North America.
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| 16. | But from approximately down from outer space, there is a habitable layer known as the Bespin Life Zone.
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| 17. | Ponderosa pine forests grow at elevations between, on both North and South rims in the Transition life zone.
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| 18. | Brown said the search for planets will concentrate on what he calls " the life zone " around stars.
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| 19. | Life zones range from ponderosa pine and aspen-covered high country to desert vegetation in the bottom of Dark Canyon.
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| 20. | Four major tropical life zones are protected between the La Selva and its connection to Braulio Carrillo National Park.
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