Assertion: protozoan's system | /r/HasProperty | based upon appearance
Facets:
Source sentences:
text: Many visitors to this site will have, as their only knowledge of a microscopic creature, the memory of (or pictures of) what they saw under their microscopes, and will require a system of identification which is based upon appearance.
text: Many visitors to this site will have, as their only knowledge of a microscopic creature, the memory of (or pictures of) what they saw under their microscopes, and will require a system of identification which is based upon appearance.