Marine life asexually by binary fission, fragmentation, or budding; unlike bacteria and eukaryotes, no known species forms spores. Archaea are particularly numerous in the oceans, and the archaea in plankton may be one of the most abundant groups of organisms on the planet. Archaea are a major part of Earth's life and may play roles in both the carbon cycle and the nitrogen cycle. Of eukaryotic groups, the protists are most commonly unicellular and microscopic. This is a highly diverse group of organisms that are not easy to classify. Several algae species are multicellular protists, and there are marine slime molds have
Short food supply chains Short food supply chains Short food supply chain (SFSCs) is a broad range of food production-distribution-consumption configurations, such as farmers' markets, farm shops, collective farmers' shops, community-supported agriculture, solidarity purchase groups. More in general, a food supply chain can be defined as "short" when it is characterized by short distance or few intermediaries between producers and consumers. SFSCs were originally identified as examples of "resistance" of farmers to modernization of the food system, characterized by the development of supply chains based on long-distance trade. Resistance consists in the fact that, by selling directly to consumers, farmers bypass intermediaries and thus