the fossil record helps scientists identify a single species from which other organisms have descended…

the fossil record helps scientists identify a single species from which other organisms have descended. which is used to refer to this single species?\nparent organism\nfossils\ndescendant\ncommon ancestor
Answer
Answer:
D. common ancestor
Brief Explanation:
A common ancestor is a single species from which other organisms have descended. Fossil records help identify such ancestors.