Your mark = your answer/real number X 100 / 4 = _____ / 25

Questions - answer in the space provided , you may use the back side of this sheet.....

1) Discuss what things in nature might prevent a wildlife biologist from getting an accurate estimation of a wild population of fish or mammals when using the the Mark - Recapture method. (5 points)

2) Zebra mussels have virtually no predators in North America, what things biotic and abiotic would limit their population growth explosion? (5 points)