Criticism: Where are the swords? And, honey bees (Jaredite "deseret") weren't found in the Americas until Europeans brought them! Where are the elephants? Where were the horses? Silk from silkworms...no such thing then in the Americas either!
Response: In the Popol Vuh, their god, Tohil, reminds the warriors of wasps and bumblebees they could put inside gourds and use to surprise their enemies by breaking the gourds full of bees and wasps on their enemies shields and swords, thus angering the bees (who would think that the enemy was the person whose sword just broke their gourd) and driving their enemies away.
Read more at Plants and Animals in the Book of Mormon: Possible Solutions to Apparent Problems