Read the paragraph below.
“Charles Robert Darwin (1809-1882) set out on a voyage when he was 22 years old. The studies that he conducted during this voyage provide a deep understanding about the variety of life on earth. After he got back to England, he stayed there and conducted various experiments that led him to hypothesise. That evolution took place due to natural selection. He would have been enlightened by Mendel’s experiments, but these two gentlemen did not know of each other's work”
Which of the following understandings about science and scientific activities is supported by the above?