81.5k views
1 vote
А
is an agent that can cause infections and diseases.

User Jonasb
by
5.9k points

2 Answers

4 votes
Bacteria, fungi, and viruses
User Xlarsx
by
5.7k points
1 vote

Bacteria, viruses, fungi, Protozoa, and Helminths

User KnowItAllWannabe
by
5.7k points