The closest living relatives of dinosaurs are birds, which are actually the sole surviving dinosaurs. The second closest living relatives are crocodilians.
None. There is no close relationship between dinosaurs and fish.
some did
Most dinosaurs were herbivores. There was a wide variety or carnivorous dinosaurs, though, and all herbivorous dinosaurs evolved from the earliest carnivorous dinosaurs. Birds are descendants of carnivorous dinosaurs.
Some dinosaurs did have spines but most did not. The main body coverings of most dinosaurs were scales and feathers.
Dinosaurs are most closely related to birds to the extent that birds are cnsidered a branch of dinosaurs.
What most people call "flying dinosaurs" were actually pterosaurs, flying reptiles that were unrelated to dinosaurs. However, birds are considered by most scientists to be a clade of dinosaurs, and thus birds are "flying dinosaurs."
Ultimately all animals are related, though there is no close relationship between fish and dinosaurs.
yes most dinosaurs ate plants
Most dinosaurs were herbivores
Miocene the event took place at the close of the cretaceous period which whiped out the dinosaurs.
The fastest dinosaurs were the ostrich mimic ornithomimids. Some examples are Gallimimus and Harpymimus. These dinosaurs have a very close resemblance to ostriches.
In a sense, yes. Many scientists nowadays actually classify birds as a branch of the dinosaurs.