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A population of Paramoecium caudatum was grown in a culture medium. After 5 days, the culture medium became overcrowded with Paramoeium and had depleted nutrients. What will happen to the population and what type of growth curve will the population attain? Draw the growth curve.

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The population of Paramoecium will show logistic growth which can be shown by a sigmoid curve. The population growth will show the following phases:

 (a) Lag phase

(b) Acceleration phase

 (c) Deceleration phase

 (d) Asymptote phase

 The asymptote phase shall be reached on the fifth day. The following figure shows the growth curve:  

 

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