Answer the following question given this paragraph: 

Protostomes and Deuterostomes Bilaterally symmetrical, triploblastic eucoelomates can be divided into two groups based on differences in their early embryonic development. Protostomes include phyla such as arthropods, mollusks, and annelids. Deuterostomes include.


Q: What are the two groups that tripoblastic eucoelomates can be divided into based on early embryonic development differences?


A:
protostomes and deuterostomes