Match the description to the infectious agent.

Question

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.
Column B
a.parasite
b.fungi
c.bacteria
d.viruses

Answer 1

Here are the correct matches between the descriptions in Column A and the infectious agents in Column B:

1. tiny, single-celled organisms with no nucleus inside the digestive tract: c. bacteria
2. no cells, takes over a host cell from which it replicates and spreads into neighboring host cells: d. viruses
3. multicellular organisms made up of cells that have cell walls and well-defined nuclei: b. fungi
4. an organism that lives in or on another organism and takes nutrients at the expense of the host: a. parasite

So the final matches are: 1 - c 2 - d 3 - b 4 - a