The wing of a bat is homologous to the flipper of a whale. Homologous structures are structures that have a similar ancestries and common traits but maybe not have the same function in an organism. For example the arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. 
        
             
        
        
        
HI Mate! The right answer is vascular tissue! 
 
        
             
        
        
        
 Answer:
DNA is functional is the transmission of genetic information. It forms as a media for long-term storage. RNA is functional is the transmission of the genetic code that is necessary for the protein creation from the nucleus to the ribosome. The DNA is a double-stranded molecule that has a long chain of nucleotides.
 
        
             
        
        
        
They return nutrients from waste or dead organisms back into the ecosystem to be recycled.