Seed are sometimes sold commercially while still enclosed within the hard wall of the fruit, which must be split open to reach the seed. Different groups of plants have other modifications, the so-called stone fruits (such as the peach) have a hardened fruit layer (the endocarp) fused to and surrounding the actual seed. Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed, such as an acorn or hazelnut. Seeds are produced in several related groups of plants, and their manner of production distinguishes the angiosperms ("enclosed seeds") from the gymnosperms ("naked seeds"). Angiosperm seeds are produced in
Seeds of Peace proficiency in English and leadership skills, local politics, general knowledge, and are selected on the basis of interviews and written essays. Many of the first time campers are chosen by the Ministries of Education or other government agencies in their respective countries. John Wallach's vision focused on leaders of the next generation—on Seeds who will one day become change-makers in their communities and generate political, social and economic impact. Delegation Leaders are educators from the countries in conflict; they take part in the selection and orientation of Seeds at home. They accompany the Seeds to and from camp. At the