The system needed to be overhauled so that entire neighborhoods could be certified, not just buildings. Thatâs why NRDC teamed up with the Congress for the New Urbanism and the U.S. Green Building Council to launch LEED for Neighborhood Development, or LEED-ND, in 2010.
Young newly sprouted plants are called seedlings. They are what  grows directly after germination takes place. These plants then  grow into the adult plants.
Gametes can either be male-sperm-or female-eggs. The egg and sperm will fuse in order to create the first part of the diploid life stages. The zygote is a unicellular diploid structure that will divide in order to create the sporophyte. The sporophyte is the multicellular diploid stage of the plant life cycle.This structure will eventually create the haploid spores by the process of meiosis. Meiosis-also called sexual reproduction-creates four cells that are genetically different and haploid.emember that cells containing only one copy of each chromosome are called haploid. The sporophyte will go through meiosis in order to produce spores. Spores are the first part of the haploid stage that we looked at, completing the life cycle.