The rat's tail is an extension of the vertebral column that projects out the back side of the animal. The tail is a long cylinder consisting of three concentric layers. The innermost core of the tail is bone (vertebre).The bone is surrounded by a layer of tendons, and the tendons are surrounded by a layer of skin.he rat's tail is an extension of the vertebral column that projects out the back side of the animal. The tail is a long cylinder consisting of three concentric layers. The innermost core of the tail is bone (vertebre).
Diseases transmitted by mosquitoes include: malaria, dengue, filariasis, West Nile virus, chikungunya, yellow fever, Japanese encephalitis, Saint Louis encephalitis, Western equine encephalitis, Eastern equine encephalitis, Venezuelan equine encephalitis, La Crosse encephalitis and Zika fever.osquito-borne diseases or mosquito-borne illness are disease caused by bacterial, viruses or parasites transmitted by mosquitoes.
Other mosquito-borne diseases include dengue fever, yellow fever, and encephalitis. There are more than 2,500 species of mosquito, and mosquitoes are found in every region of the world except Antarctica. During the peak breeding seasons, they outnumber every other animal on Earth, except termites and ants.