Number of rotifers 4500+ 4000- 3500 3000- 2500- 2000- 1500- 1000- 500- 0 Key x Rotifers alone (flask X) • Rotifers when living with water fleas (flask Z) 2 0 2 X -+ 4 Yo * X X X 6 8 10 12 14 16 18 Day Analyze the graph and identify some factors that may contribute to the rotifer population leveling off in the absence of water fleas. Explain your answer in 1-2 sentences.

#7

ation moths PHASE 4: Clean forest Complete the following steps: Select initial allele frequencies 6 SUBMIT Click Next generation to wait a year for first generation of moths Click Capture moths to monitor population numbers Calculate phenotype frequencies in 5th generation. Record in Lab Data Calculate allele frequencies in 5th generation. Record in Lab Data Calculate genotype frequencies and number of moths in 5th generation. Record in Lab Data

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