1. It is an infectious RNA particle 2. Viroid is formed of only RNA 3. A protein coat is absent 4. Viroid has a smaller size 5. Viroid infects only plants
Virus
1. It is a nuclearprotein particle 2. Nucleic can be DNA or RNA 3. A protien covering a coat called always present 4. Virus has a larger size 5. Virus infects all types of organism
A reason could be the bodies ability to process the water based vitamin as well as the person's diet. many things have b12 in it but choosing to cut something out, like meat, could cause a deficiency
