Viruses can be labeled as RNA or DNA viruses and they can be said to have an envelope or to be "naked".
Shape,Genetic material,Precense of reverse transcriptase enzyme,Host
size and shape
Biotic is a term that is used by science to classify living things.
Temperature and humidity
it tells them apart :)
No it dosen't. I have used it for several years and no viruses.
genus apecies
A Living Organism.
Vertebrates and non-vertebrates.
The United States and several other countries use the Enhanced Fujita scale to classify tornadoes, which is an upgraded version of the Fujita scale.
texture, color, chemical reactions things like that.
The main characteristics of clouds are their elevation, and their density.