ප්රවර්ගය:Bilaterians
Bilaterians හා සබැඳි මාධ්ය විකිමාධ්ය කොමන්ස් හි ඇත.
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]
- ↑ Brusca, Richard C. (2016). "Introduction to the Bilateria and the Phylum Xenacoelomorpha: Triploblasty and Bilateral Symmetry Provide New Avenues for Animal Radiation" (PDF). Invertebrates. Sinauer Associates. pp. 345–372. ISBN 978-1-60535-375-3.