Which feature of viruses prevents them from being classified into a kingdom? a. They are not living organisms.
b. They are not contagious.
c. They are not virulent.
d. They are not pathogens.

A

Explanation:

Were viruses ever alive? Most biologists say no. Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

A

Explanation: I think the answer is A but I am not sure.. I remember taking that class tho..

a. by using fur or clothes to trap heat energy near the body