In eight pages Pima County is examined in this overview of economics, population, ethnicity, and demographic aspects including vegetation, habitat, and climate. Nine sources are cited in the bibliography.
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to withstand extreme heat and cold. Indeed, it can readily be argued that heat is not the only prerequisite for desert environment, inasmuch as the arctic atmosphere is just
as much desert-like for the reason that its water source is locked within the ice structures. Therefore, there are two distinctly separate entities of life forms that exist within
the desert landscape of Pima County: the heat adapted and the cold adapted, a condition that readily applies to all global deserts. "All sorts of creatures, from mud-burrowing fish
to wild cats, scorpions to camels, sidewinding snakes to jackrabbits, find homes in the worlds deserts. Theyve all evolved adaptations to the deserts harsh extremes of dryness and heat.
And extreme cold" (Anonymous PG). The plant and animal life that thrives within the desert landscape of Pima County are both vast and varied; with three hundred different species
of animal, rodent and plant, from the most insignificant weed to the sturdy cactus (Desert Gold Diggers), the desert is filled with a multitude of life forms, all of which
learned how to adjust to their hostile surroundings. A number of adaptations have occurred throughout time in order to better equip this plant and animal life with the ability
to withstand the most unfriendly of all living atmospheres; however, this acclimatization did not occur overnight, but rather over an extended period of time as the physiological composition of such
plants and animals continued to evolve. "Deserts can be forbidding places--sometimes parched, sometimes very hot or very cold. Yet they nurture a variety of life" (Anonymous PG). When
one initially thinks of desert life, the immediate reaction is often that of snakes and cactus. While these two life forms do, indeed, represent the kind of flora and