For your study, you will be examining a specific population of spiny cacti, which is originally in genetic equilibrium. A road is built quite close to the study site, which keeps
away the treacherous and parasitic insects, but with the road comes the tourists. In
many desert areas of the United States, passing cactus lovers like to pick up a souvenir
cactus to take home with them after a day-trip out into the desert. This is a serious
problem in some areas because the tourists always take the better looking cacti, and
these happen to be the ones with the middle-spine-numbers. Years of collecting have
left their toll on the roadside cacti. Using this background knowledge and the data
collected below; create a graph of both the original population of cacti and the current
population on a piece of graph paper. Place the number of cacti on the Y axis (count by
1’s) and the number of spines on the X axis (start at 70 and count by 5’s). Remember to
label your x and y axis and give your graph a title.
Use two different colors on your graph. One for the original population line and
one for the current population line