7.1 Assignments (Part 2) -  Natural Selection in Human Traits 

 Use the videos to the right (and your unit guide (FINAL PAGE)). Fill out the last 2 of the 4 natural selection summary charts. Don't forget to use your natural selection flow chart!

- Everyone will watch the video on lactase persistence.

- If you sit on the RIGHT side of the class (facing the board), you will also watch the video on Sickle Cell Anemia Evolution 

- If you sit on the LEFT side, you will watch the video on skin tone (melanin production).


Video 1: Lactase Persistence (ALL STUDENTS WATCH)

- What is coevolution? 

Video #2: Sickle Cell Anemia and Malaria (Right side of Class) 

- Is evolution always optimal for all the population? 

Video #3: The Biology of Skin Tone (Left Side of the Class) 

- What is evolutionary "balance" in terms of range of skin tones?