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 AE is the flood insurance rate zone that corresponds with flood depths greater than 3 feet. Mandatory flood insurance purchase requirements apply. Zone AH is the flood insurance rate zone that corresponds to areas of shallow flooding with average depths between 1 and 3 feet.
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