The resource Wesley should consult to find out how to pronounce the word "phylum" is an online dictionary.
The resource that Wesley should consult to find the correct pronunciation of the word "phylum" is an online dictionary. An online dictionary will provide the pronunciation guide for the word along with its definition and other relevant information. Wesley can simply search for the word "phylum" in the online dictionary and look for the pronunciation guide, which is usually provided in phonetic symbols.