Explanation

Connecting Links The organisms having the structures of two different groups are called connecting links. These explain the path of evolution. Connecting Links Organisms are those which show characters of two different groups. They show the possible path for evolution Some Important Connecting Links [table] Link | Between the Groups ; Xenoturbella Virus Trochophore larva Tornaria larva Sphenodon (living fossil lizard) Seymouria Rickettsia Protopterus (Lung fishes) Proterospongia Peripatus (walking worm) Ornithorhynchus (duck billed platypus) Neopilina Myxomycetes Latimeria Hornworts Gnetum Euglena Echidna (spiny and easter) Cycas Ctenophora Club moss Chimera (rabbit fish/ratfish) Balanoglossus Archaeopteryx Actinomycetes | Protozoa and Metazoa Living and non-living Annelida and Mollusca Echinodermata and Chordata Amphibia and Reptilia Amphibian and Reptiles Virus and Bacteria Bony fishes and Amphibia Protozoa and Porifera Annelida and Arthropoda Reptiles and Mammals Annelida and Mollusca Protista and Fungi Pisces and Amphibia Protista and Bryophytes Gymnosperms and Angiosperms Animals and plants Reptiles and mammals Pteridophytes and gymnosperms Coelenterates and Platyheliminthes Bryophytes and Pteridophytes Cartilaginous and bony fishes Chordates and non- chordates Reptiles and birds Bacteria and fungi [/table]