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The tundra at the base of the Torngat mountains in Labrador consists primarily of low-growing mosses
Ivory traders, c. 1912
The testes. In addition to producing sperm, the testes secrete the male sex hormones, primarily test
Approximately 40 percent of farmers in the United States are 55 years old or older
Modern machinery has helped farmers increase yields
Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems,