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.
Mosquitoes carry viruses and parasites in their saliva. When they bite, mosquitoes can transmit severe and even life-threatening illness. They are known carriers of West Nile virus, dengue fever, yellow fever, and encephalitis, among other diseases.