Assertion: flea | /r/HasProperty | alerted to its presence
Facets:
value: through increased carbon dioxide
type: MANNER
value: through body heat
type: MANNER
value: through vibrations
type: MANNER
Source sentences:
text: When a potential host passes by, such as a person, dog or a cat, the flea is alerted to its presence through vibrations, body heat and increased carbon dioxide.