⚠️please help ASAP, this is a one of the last questions for a very important test I’m taking and I would like to make sure my answer is correct In reference to the Phylum
Echinodermata, what is a water
vascular system?
A. a network of water filled canals that help with
locomotion and gas exchange
B. the body plan that allows water to pass through to filter
feed
C. a thick layer on the outside of the organism that
protects it from dehydrating in the salt water