Why was the discovery of organisms, such as archaeopteryx, that have a mix of traits usually associated with two different groups considered validation of darwin's theory of evolution?

The answer would be transitional forms like Archaeopteryx make available DNA confirmation that demonstrates how organisms are related. Transitional fossils establish the middle forms that happened over the evolutionary trail taken by a single genus. A case in point of a transitional fossil is archaeopteryx, which relates the evolution of dinosaurs (from jaws and claws) to birds (feathers).

a. possible errors

d. new questions

explanation:

predictions and planning happen before. a summery comes after. errors you get after investigation and new questions propose what you can look for in the future.

c.           is the correct answer