Assertion: barnacle's calcite shell | /r/HasProperty | impermeable
Facets:
Source sentences:
text: Their calcite shells are impermeable, and they possess two plates which they can slide across their apertures when not feeding.
text: Their calcite shells are impermeable, and they possess two plates which they slide across their mouth opening when not feeding.
text: Their calcite shells are impermeable, and they possess two plates which they slide across their mouth opening when not feeding.
text: Their calcite shells are impermeable, and they possess two plates which they slide across their mouth opening when not feeding.
text: Their calcite shells are impermeable, and they possess two plates which they slide across their mouth opening when not feeding.