The Geography of Afghanistan. Major Bodies of Water: Afghanistan is a landlocked and fairly dry country. Major rivers include Kabul River, Amu Darya, Harirud River, and the Helmand River. Lakes include Lake Zarkol, Kajaki Reservoir, the five lakes of Band-e Amir, and the Sardeh Dam.
Phylum Chordata - lancelets,hagfish ,lampreys ,fishes ,sharks ,amphibians,reptiles ,birds ,mammals
Abstract. Hagfish and lampreys are the only living representatives of the jawless vertebrates (agnathans), and compared with jawed vertebrates (gnathostomes), they provide insight into the embryology, genomics, and body plan of the ancestral vertebrate.e did not find any nucleotide substitutions in the mature sequence of any vertebrate miRNA that is shared between gnathostomes and lampreys to the exclusion of hagfish (or between hagfish and gnathostomes to the exclusion of lamprey).