True or false? Viruses are the smallest disease-causing agents known to scientists?

Answer 1

False. I'm pretty sure prions are smaller.

Answer 2

Pyrons are tiny but here's another disease causing agent. Viroids - an infectious particle smaller than any of the known viruses, an agent of certain plant diseases. The particle consists only of an extremely small circular RNA (ribonucleic acid) molecule, lacking the protein coat of a virus. Viroids appear to be transmitted mechanically from one cell to another through cellular debris.

Answer 3

Silverbirch is right...prions are smaller than viruses, and they definitely cause disease. Not sure who is asking this true/false question, but they may be grouping viruses and viroids (which are also smaller) together. Either way, the answer is false because of prions.

Answer 4

No. They are the smallest biological agents. Poisons, such as heavy metals cause (fatal) diseases and they are only 1 atom large... That's smaller than a virus by many orders of magnitude.

Answer 5

you get cancer from something the size of a shoebox??
a single ar\tom out of place in DNA can cause disease unless the body recognizes it and destroys it. Don't read 20-yeard-old textbooks and listen to "teachers" educated before sliced bread.

Answer 6

true and false

viruses and viroids are the smallest of the infectious agents
see:
http://www.britannica.com/eb/article-63338/plant-disease
also
http://www.pgl.ufl.edu/modules/mysterious_invaders/living.htm

Hope it helps

Answer 7

false

Answer 8

false

Answer 9

No, viroids are smaller.