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Flatworms
Bilateral symmetry.
bilateral
bilateral
testicals.... that is all
Flatworms and Roundworms have bilateral symmetry as a body type.
They are marine birds.
Bilateral Symmetry
Bilateral Symmetry
Type your answer here... physiologist
stupid butt..
Lower phyla in the animal kingdom such as Cnidarians, Porifera, and Ctenophora.