Question

4. Which evidence did Darwin NOT use to support his theory of evolution?

a. Observations of fossils
b. Finches on different islands had different types of beaks
c. Young finches that acquired desirable traits as they aged
d. Observations of different species with varying traits

Answer 1

The answer, I believe, is a.

Step-by-step explanation:

Observations of fossils came later I believe. :)