Assertion: echinoderm's system | /r/HasProperty | tudge
Facets:
Source sentences:
text: Almost all taxonomic systems (e.g. Brusca and Brusca 2003; Tudge 2000; Margulis and Schwartz 1998) recognize that the echinoderms have 5 natural groups (classes) within them.
text: Almost all taxonomic systems (e.g. Brusca and Brusca 2003; Tudge 2000; Margulis and Schwartz 1998) recognize that the echinoderms have 5 natural groups (classes) within them.