Animals with Complex Structures



Animals with Complex Structures

The larger invertebrates have evolved specialized organs for excretion, whic also helps them maintain water balance, in these animals known as nephridial organs. In this body and nemerteans plantelmintos called protonefridio , these bodies consist of tubules whose inner ends are blind, bulky and ciliates, such structures are known as cell terminals in flame (flamíferas). There is a branched conduit system that connect external protonefridios with the outside. The flame cells are embedded in the extracellular fluid so that the waste is spread directly to these cells and from there to the excretory ...