You may work on the following questions for a total of 120 minutes. You can write your answers on separate paper or print out the exam (but this will use some of your total time). You must upload a PDF of your solution within 130 minutes from when you started this exam.   exam1.pdf

19. Which statement best describes the enzyme represented in the graphs?  

3. One of the functions of pelvic spines in the ocean is to protect stickleback from larger fish predators. Based on this knowledge, which statement might be a possible explanation for the differences in pelvic spines between Bear Paw Lake and Frog Lake sticklebacks?  

42. If cells in the process of dividing are subjected to colchicine, a drug that interferes with the functioning of the spindle apparatus, at which stage will mitosis be arrested?

10. Part of the microscope you look through, also called the eyepiece?

29. Which sequence correctly traces the path of protein synthesis in the cell?

6. A scientist hypothesizes the temperature at which an alligator’s egg is incubated will determine whether the alligator will be male or female. The independent variable is

9. What happened to these fish as they adapted to living exclusively in freshwater?  

28. Features that increase the likelihood of survival and reproduction by an organism in a particular environment are called 

41. If there are 20 chromatids in a cell, how many centromeres are there?