In biology, tissue is a cellular organizational level between cells and complete organs. A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.
Bats are very unique and interesting organisms, as they live all there life away from sunlight, they are considered to be the most advance of all the predators just because of having a sonar system inbuilt in there body system. While, they feast on there food outside the place where the remain most of the time and those places are caves.
Now, caves are more then just we exactly know, caves comprises of the different level of organisms and they play a very vital role in the over all balancing of the ecological system.
As, there are some insecticides, and other large organisms which then feast upon the bodies of bats corpses or when they are injured due to some reason. So, they play a vital role in the over all ecological food system inside the caves as well.
Answer: because the flu is not liquid it is air born even in your body it is airborn so it floats through your orgons and through any thing in its way even through the heart
