All of these observations (of the differences as well as the similarities) could be considered and interpreted as evidence of a natural process that shapes all life: evolution. Using your knowledge of basic principles of biological evolution and data collected from measurements made in the garden, respond to the questions below in a TSOTS blog post titled, "A Matter of Selection."
- Which part (anatomy) or characteristic of the Brassica oleracea plants seems to exhibit the most variation (greatest number of different forms)? Which part or characteristic of the Brassica oleracea plants seems to show the greatest range of variation (biggest difference between one extreme and its opposite)? Use and include data collected from multiple measurements to support your answer.
- Using the terms that follow, explain why you think there is so much variability in the domestic forms of Brassica oleracea: traits, selective breeding, artificial selection, genes, descent with modification, natural variations, mutations
- Which part (anatomy) of the Brassica oleracea plants seems to be most consistently the same in all of the examples in our garden, regardless of how extreme the differences between other parts of the same plants may be? Why do think this is so? Again, use and include data collected from multiple measurements to support your answer.
- What would plant breeders have to do in order to get the body part or characteristic you described above (in your response to question #3) to become much different than it is presently?