Bacteria, viruses, fungi, and protists have a bad reputation. people focus on the diseases they cause, the food they rot, and the bad odors they creat, even though most types cause no harm to living things. one type is an exception. it is non-living and can only reproduce by hurting its host. which one of these groups is a none-living agent of disease?
a. bacteria
b. viruses
c. fungi
d. protists

B.

Viruses are classified as biological agents instead of a living things, $& they are only made of genetic material.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides