Sea shells
Task and Upload instructions: This link takes you to your assignment: Progress through the module by reading, and if requested answering questions. Whenever video is offered, watch the video!
Once you finish a page, click on “next” to progress. Take a screenshot of the last screen, the one that shows “100% completed” and submit the screenshot!
In addition, discuss the following on one page and submit:
Consider what Dr. Olivera says about Variations within a species and How to classify species.(Two different videos) Consider also that most of the traditional taxonomy sorts organisms by their morphology (physical appearance) as either closely or more distantly related. Naturally, some taxonomists tend to “lump” organisms into one species; others tend to “split” samples into several different ones.
What is the modern technological advancement that can for the most part definitely provide an answer for proximity of relatedness?
What would be the ultimate “test” whether two or more somewhat different looking organisms belong to one species? (Most modern textbooks follow Ernst Mayr’s definition, known as the Biological Species Concept (BSC) of a species as “groups of actually or potentially interbreeding natural populations, which are reproductively isolated from other such groups and whose offspring is fertile”