Title: Stickleback Virtual Lab
Course: BIS 105 Environmental Biology > Section: BIS 105 Environmental Biology

In this virtual lab you will examine the evolution of spines in sticklebacks.

Q: What conclusion can you draw from your graph in Experiment 1?

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

Q: What is the relationship between age and position of sediment layers in the Nevada lake quarry?

Q: How would you test whether the ancient Nevada lake contained predatory fish?

Q: Living populations tell us about mechanisms of selection; fossils provide a record of change over time. Based on what you have learned in this virtual lab, would you agree or disagree with this statement?