Now I know that structures in a simple nervous system differ from those in a complex nervous system in that they have a unit that isn't basic, but in their arrangement. In higher nervous systems there are not interneurons concentrated in the main nervous system. (brain, spinal, and cord.) They meditate the impulses between afferent and efferent neurons.
Homointernal adalah hewan yang bersuhu tubuh panas dan tetap hewan-hewan ini adalah: 1)Ikan, terbagi -ikan hiu -ikan pari 2)Amfibi terbagi -Kodok 3)Reptil -buaya -kura-kura 4)Burung terbagi -ayam -merak -kasuari
