Answer: True
Step-by-step explanation:
Crustaceans are the group of organism that live in water and on land as well for sometime. The Branchiopoda is the sister group of hexapoda.
The Branchiopoda is a class of Crustaceans which is the sister of hexapoda. There are many investigations going on to know which class of crustaceans is closest to the hexapoda.
But there is no such confirmation but till date the research and investigations suggest that the Crustaceans are group of hexapoda.