Assignment: the arms of a sea star exploration data table 1: arm lengths of sea stars at particular years sample number year 1 year 50 year 100 1 57 cm 62 cm 75 cm 2 62 cm 74 cm 77 cm 3 75 cm 77 cm 80 cm 4 78 cm 80 cm 80 cm 5 82 cm 81 cm 81 cm 6 88 cm 83 cm 83 cm 7 90 cm 88 cm 85 cm 8 95 cm 89 cm 88 cm 9 105 cm 90 cm 88 cm 10 110 cm 92 cm 90 cm 11 110 cm 95 cm 90 cm frequency table 1: frequency of sea star sizes within specific ranges size range (in cm) number of organisms year 1 number of organisms year 50 number of organisms year 100 51–60 1 61–70 1 71–80 2 81–90 91–100 101–110 size frequency of sea stars, year 1 7 6 5 4 3 2 1 0 51–60 61–70 71–80 81–90 91–100 101–110 intervals (cm) size frequency of sea stars, year 1 7 6 5 4 3 2 1 0 51–60 61–70 71–80 81–90 91–100 101–110 intervals (cm) size frequency of sea stars, year 50 7 6 5 4 3 2 1 0 51–60 61–70 71–80 81–90 91–100 101–110 intervals (cm) size frequency of sea stars, year 100 7 6 5 4 3 2 1 0 51–60 61–70 71–80 81–90 91–100 101–110 intervals (cm) questions 1. what change do you see over the 100-year period? 2. suggest one reason why this change might have occurred. 3. if this population continued for the next 100 years with no changes in arm length, what could you say about these sea stars?