Answer:
LOPHOPHORE: Ciliated feeding structure, ring of hollow tentacles around mouth, extension of the metacoel, functions in feeding respiration, lateral cilia create water current, frontal cilia transport food to mouth.
a horseshoe-shaped structure bearing ciliated tentacles around the mouth in certain small marine invertebrates.
Step-by-step explanation:
got it from google
-2.67
7/10
2.67
2.07,2
P = 4
2 x 4 is 8
so 13 - 8 = 5
3