Answer:
Morphology means the study of the forms and structure of organisms and their features. Which means that some challenges that viruses might face are less of the groups if that makes sense.
Explanation:
A virus is made up of four groups. The filamentous, isometric, head, and tail. Which means that the virus could possibly have less of it's parts because morphology is the study of how it FORMS.
(i hope this helps)