A lot of bacteria, virus and toxins can become a health risk if there is a biological warfare attack. Alphavirus is a small,rounded,enclosed positive virus causing human and animal sickness. Examples include Sindbis virus and Chikungunya virus such then can be the pattern of infections that can cause chronic infections of the vital organs such as the lungs.
Answer:
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Rheumatoid arthritis is caused by the breakdown of cartilage.
Explanation:
In most cases animals get aggressive (D) in the habitation.
Metastasis, the process in where cancer cells break off from their original position, and travel throughout the bloodstream
