Question 11 of 30 Which of the following is an example of a biological system?
O A. A biology textbook
O B. The Internet
O C. The heart, lungs, and blood vessels working together to carry
oxygen throughout the body
D. A science fair project modeling the process of breathing in the
human body

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?