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A scientist was observing a population of sea cucumbers in coastal waters. Over a 10-day period, she collected the following information about the distribution of the individuals within a 10-meter square plot:


Distribution of Sea Cucumbers within a 10-Meter Square Plot


Time of Day


Average Distance between Individuals (cm)


Midnight


7.0


4 a.m.


7.8


8 a.m.


43.7


Noon


172.0


4 p.m.


349.5


8 p.m.


58.9


Midnight


7.0



Use the data above as a basis as you answer the following questions: (10 points)

AIdentify THREE biotic or abiotic factors that could cause the sea cucumbers to vary their distance from each other throughout the day.

BUsing one of the factors listed in part (a) as an independent variable, write a hypothesis that proposes how this variable could cause the sea cucumbers to vary their distance from each other.

CDesign a procedure for a controlled experiment to test your hypothesis.

DDescribe the results that would support your proposed hypothesis and the results that would refute your hypothesis.