Please choose all the correct statements regarding early chordates. Amphioxus has all four defining chordate characteristics as an adult. Tunicates have has all four defining chordate characteristics as adults. Tunicates are filter feeders, and Amphioxus us a predator. Both tunicates and amphioxus have an anus and an opening through which water leaves the body.

What characteristic defines a chordate who is also a vertebrate?

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Which statement is false according to the tree below? Hagfishes athans Lampreys • Cartilaginous fishes Ray-finned fishes Gnathostomata Coelacanth Lobe-finned fishes Lungfish Osteichthyes Caecilians Sarcopteryg • Salamanders Amphibians Frogs Turtles Tuatara Tetrapoda Lizards and snakes Reptiles Crocodilians Birds Amniota Monotremes Marsupials Mammals Placentals The relationship among amphibians is uncertain Lobe-finned fish do not form a monophyletic group Turtles are more closely related to Tuataras and Lizards than to Crocodiles and Birds The Reptiles form a clade 모모 나모

It can be argued that all tetrapods are a variation of fish. Explain how this could be true.