Match the description to the infectious agent.
Column A
1.
tiny, single-celled organisms with no nucleus inside the digestive track:
tiny, single-celled organisms with no nucleus inside the digestive track
2.
no cells, takes over a host cell from which it replicates and spreads into neighboring host cells:
no cells, takes over a host cell from which it replicates and spreads into neighboring host cells
3.
multicellular organisms made up of cells that have cell walls and well-defined nuclei:
multicellular organisms made up of cells that have cell walls and well-defined nuclei
4.
an organism that lives in or on another organism and takes nutrients at the expense of the host.:
an organism that lives in or on another organism and takes nutrients at the expense of the host.
1. Bacteria
2. Virus
3. Fungi
4. Parasite