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Use the following list of animals to fill in the blanks. Write the corresponding letter in the correct blank. (eg: “A”)

(A)  Platyhelminthes

(B)   Nematode

(C)   Chordates

(D)  Echinoderms

(E)   Cnidarians


jellyfish and hydra

include mammals

have radial symmetry with a gastrovascular cavity

includes flatworms

developed last in the evolutionary timeline