Word: nutrients
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Couched in a halo of nutrient cells, an egg smaller than the dot on an i drifts slowly down a Fallopian tube, one of a pair of narrow passages that lead from a woman's ovaries to her womb. Like a beacon guiding ships at night, the egg sends forth a calling signal. A convoy of sperm -- the remnants of an armada that was once a couple of hundred million strong -- sails into view, their long tails thrashing vigorously. Lured by the chemical signal, several hundred of the most energetic swimmers close in on the egg, their narrow tips unleashing...
...listed on product packages. This phase will also address the tricks associated with serving size. Until the federal agency jumped into the fray, private physicians and nutritionists had been fighting a lonely rearguard action in this realm of superslim slivers and oversize wedges. A manufacturer wishing to boost the nutrient value of a cereal, for example, simply bases the label on an oversize portion. If low calories are the object, the portion becomes minuscule. Take, for example, Entenmann's fat-free Chocolate Loaf Cake, which boasts a scant 70 calories per 1-oz. serving. No one with a sweet tooth...
...Thirteen Everglades animals are now endangered species. Only about 30 Florida panthers remain, and in recent years several have been killed on roads cutting through the area. Half the original Everglades has been lost to development. Now the biggest threat comes not from bulldozers but in nutrient-laden runoff from sugarcane and vegetable farms that lie to the north, between the Everglades and its chief source of water, Lake Okeechobee...
...nature," says Jim Webb, regional director of the Wilderness Society, "but it has to be done." Florida's research shows that high levels of phosphates and nitrates from farm runoff have transformed more than 20,000 acres of Everglades saw grass into cattails. These intruders, which thrive in high-nutrient water, suck the oxygen from the marsh and suffocate aquatic life at the bottom of the Everglades food chain. On shallow ponds and canals, nutrient-fed algae grow so thick that they block the sun from underwater plants. So far, most of the damage is confined to Loxahatchee National Wildlife...
...when stripped of its trees, the land becomes inhospitable. Most of the Amazon's soil is nutrient poor and ill suited to agriculture. The rain forest has an uncanny capacity to flourish in soils that elsewhere would not even support weeds...