hw 35.1 - large group of nonflowering plants, including...

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Ryan Owings 3/16/2007 35.1 1. Human beings who perfume themselves are not much different from other animals. 2. Animals as varied as insects and dogs release pheromones, chemicals that signal other animals. 3. Human beings have a diminished sense of smell and do not consciously detect most of their own species’ pheromones. 4. None 5. Some sources say that people began using perfume to cover up the smell of burning flesh during sacrifices to the gods. 6. None 7. They were used not only in religious ceremonies but on the body 8. began synthesizing perfume oils, which previously could be made only from natural sources. 9. Although some people dislike its heavy, sweet odor, the most popular animal oil for perfume today is musk. 10. a certain species of deer, whose gland is the source of musk. 35.2 People generally avoid eating mushrooms except those they buy in the stores. However, in fact many varieties of mushrooms are edible. Mushrooms are members of a
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Unformatted text preview: large group of nonflowering plants, including algae, mosses, ferns, and coniferous trees, even the giant redwoods of California. Most of the nonflowering plants prefer moist environments such as forest floors, fallen timber, and still water. Mushrooms, for example, prefer moist shady soil. Algae grow in water. Most mushrooms, both edible and inedible, are members of a class called basidium fungi. A term referring to their method of reproduction, the basidia produce spores, which can develop into mushrooms. This classification including the prized meadow mushroom, cultivated commercially, and the amanitas. The amanita group contains both edible and poisonous species. Another familiar group of mushrooms, the puffballs. They are easily identified by their round shape. Their spores are contained under a thick skin, which eventually ruptures to release the spores....
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