Not really. The closest living relatives to allosaurus are birds.
No descendants of Allosaurus exist today. However, birds evolved from other carnivorous dinosaurs, which were relatives of Allosaurus. Thus, the closest living relatives of Allosaurus are birds. All birds are equally related to Allosaurus.
a dinosuar is similar to a bird, lizard, alligator,etc.
Archaea are considered to be the group of organisms most similar to the first cells on Earth. They are single-celled microorganisms that have simple cell structures and thrive in extreme environments, similar to the conditions present on early Earth.
Scorpions, sharks... I don't know!
vestigial
Dienonychus was a raptor, similar in appearance to the Velociraptor. It is unlikely that any are alive today.
No it's alive today
No, that isn't a statement made about evolution. The theory of evolution concerns how organisms have changed over periods of time. Everything has to have come from something! However, all living organisms alive today have evolved from predecessors, or have not really evolved much at all, e.g. Gingko bilboa and several species of sea animals.
Organisms become widely sperated, their genetic makeup may change in different ways.
alive.
There are 997 species of bats alive today.
Allosaurus reproduced by laying hard shelled eggs, most likely in a nest of vegetation to incubate the eggs. It is unknown whether there was any parental care involved, and if there was, how much is also unknown.