Assertion: coral's algae | /r/CapableOf | live within coral polyps
Facets:
Source sentences:
text: They may harbor zooxanthellae, algae that live within coral polyps and can produce brilliant colors.
text: They scrape at the coral to get to the small algae (zooxanthellae) living inside the coral polyp, then grind up the coral skeleton with teeth in their throats and excrete it as sand.
text: The algae live within the coral polyps, using sunlight to make sugar for energy.