Question

question 5
match the description to the infectious agent.
column a
1 ___ 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
3 ___ 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
column b
a. bacteria
b. fungi
c. parasite
d. viruses
question 6

Explanation:

1. Bacteria are single-celled prokaryotes with no nucleus.
2. Viruses are acellular and replicate using host cells.
3. Fungi are multicellular eukaryotes with cell walls and nuclei.
4. Parasites live on/inside hosts, taking nutrients.

Answer:

1. a. bacteria
2. d. viruses
3. b. fungi
4. c. parasite