0
Which is an ancestor of terrestrial tetrapod vertebrates whale shark hagfish coelacanth or actinopterygian fish?
Wiki User
∙ 15y ago
we do not know yet it has not ben dicoverd
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What type fish is thought to be the evolotionary ancestor to land animals?
The Coelacanth, a lobe-finned fish.
What does the presence of homologous structure in different organisms suggest?
The presence of homologous structures, such as the vertebral column in vertebrates, suggests the presence of a common ancestor. Learn more at 23andme.com.
What is most likely similar to a common ancestor of all vertebrates?
jawless fish
Why was the Psarolepis significant?
Psarolepis has features suggesting that it was very closely related to the last common ancestor of the ray finned fish (which today include salmon, tuna, and anchovies) and the lobe finned fish (such as coelacanths and lungfish). Terrestrial vertebrates, in turn, descended from lungfish.
How are birds related to mammals?
Mammals and birds are both vertebrates descended from an early reptilian ancestor.
The presences of some similar structures in all vertebrates suggests that these veterbrates are?
descended from a common ancestor
What is suggested by the similarity of early embryos of different species of vertebrates?
evolution from a distant common ancestor
The number and location of bones of many fossil vertebrates are similar to those in living vertebrates Most biologists would probably explain this fact on the basis of a the needs of the organisms?
No, b) a common ancestor.
Was a woolly mammoth a vertebrate or an invertebrate?
It is a mammal, for it gave live birth. It was the ancestor of the modern day elephant.
Why does a snake have bones and snail do not have bones?
A snake is a vertebrate belonging to the class reptilia. All vertebrates except for a few classes of fish have bones. Snails are molluscs belonging to the class gastropoda. They evolved from a boneless ancestor that they do not share with vertebrates.
The fundamental likeness of body structure in all vertebrates indicates that these organisms probably originate from?
The body structure in all vertebrates indicated that these organisms originated from Precambrian times. This has to due with having a back bone.
Do all vertebrates have gill slits?
yes, all vertebrates have gill slits in the womb but as they develop most species lose the gills. this is an example of comparative embriology which helps scientist discover a common ancestor
