88.95% of all species of repiles are thought to be endemic.
773 out of 869 known species are thought to be, no one's 100% sure though
There are no kimodo dragons in the Galapagos islands, but there are many species of reptiles: both endemic and native.
Australias an island, so it has none =.=, PNG, Nz, Malaysia and Antarctica are pretty close to it though.
Yes, there are, I have yet to find out what they are myself though.
Turtles are reptiles. I don't know what "tutles" are though.
They have some similarities. Both reptiles and mammals are primarily land-dwelling vertebrates, though some species are aquatic.
Neither...They were reptiles. dinosaurs were nether amphibians or mammals they were all reptiles, though they are more closely related to birds.
No. Emus are endemic to Australia alone, and there is just one species of emu (though there were more species a century ago).
They are generally considered reptiles, though some think they should have their own class.
Yes. There are other venomous creatures though
Most reptiles are predators which means they eat other animals to survive. But many reptiles are not very large so they limit their prey to animals that are smaller than they are such as invertebrates, amphibians, small mammals and small reptiles. There are a few reptiles though that are herbivores and feed mostly on plant material.
No body knows. Though they have an idea they might be like morden day birds or reptiles
Most likely not as the term "reptile" on earth refers to a particular group of tetrapods on earth. If similar animals were discovered on another planet they might be referred to as "repiloids"or something to that effect by scientists. Though they might be called reptiles in everyday speech.