Category:Bilaterians
From WikiMD.com Medical Encyclopedia
Animals with bilateral symmetry as an embryo, i.e. having a left and a right side that are mirror images of each other. This also means they have a head and a tail (anterior-posterior axis) as well as a belly and a back (ventral-dorsal axis).[1]
- ↑ Richard C., Invertebrates, Sinauer Associates, ISBN 978-1-60535-375-3, Pages: 345–372,
