Which of the following observations led to Darwin's major inferences?a.Members of a population vary in their heritable traits. b.Body parts that are not used deteriorate over timec.Organisms only go...

Which of the following observations led to Darwin's major inferences?a.Members of a population vary in their heritable traits.

b.Body parts that are not used deteriorate over timec.Organisms only go extinct when catastrophes occur.d.Although organisms can produce huge numbers of offspring, many of these offspring do not survive. e.Answers A and D are correct.