Internal. The ultimate sources of variation, the source of new heritable characteristics in populations and species, are due to mutation and recombination in chromosomes, genes, DNA.
Zone VE is the flood insurance rate zone that corresponds to coastal areas that have additional hazards associated with storm waves. Mandatory flood insurance requirements apply. Zone X and Zone X-500 are flood insurance rate zones that are outside the flood plain or with average flood depths of less than 1 foot.
Special Flood Hazard Area (SFHA) Zone Definition This table is for use with the MassGIS Q3 Flood Zones theme. It describes the attributes of the ZONE field. ZONEs symbolized in MassGIS coverage ZONEs not symbolized in MassGIS coverage Zone Name ZONE SFHA SYMBOL Description Zone V V In 1 An area inundated by 100-year flooding with velocity