Assertion: fern's root | /r/CapableOf | penetrate the soil
Facets:
Source sentences:
text: Once the sporophyte has developed independent existence and the root has penetrated the soil , the gametophyte soon shrivels.
text: Provide soil microbes, mycorrhizae (beneficial fungi), earthworms,and even nematode predators the necessary organic matter and ecosystem to thrive while their actions aid in improving soil tilth and or friability (think of this as the ease with which roots are able to penetrate the soil).