According to Simpson, protists can be photosynthetic or heterotrophs (organisms that seek outside sources of food in the form of organic material). In turn, heterotrophic protists fall into two categories: phagotrophs and osmotrophs.
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Its editor since launch, she celebrates the magazine's third birthday next month with it now the number one women's glossy with sales of more than 580,000, its fifth successive circulation rise and 120,000 more than its bitter rival, second-placed Cosmopolitan.