Based on the numbers given in the table, we can calculate the percentages for each fur color at the start and end of the period.
At the start:
Total mice = 110 + 390 = 500
Percentage of brown mice at the start = (110/500) x 100 = 22%
Percentage of black mice at the start = (390/500) x 100 = 78%
At the end:
Total mice = 100 + 150 = 250
Percentage of brown mice at the end = (100/250) x 100 = 40%
Percentage of black mice at the end = (150/250) x 100 = 60%
So, the percentages for brown and black fur color in the population changed from the start to the end of the period. There was an increase in the percentage of brown mice and a decrease in the percentage of black mice.
This passage describes fur color in rock pocket mice.
A rock pocket mouse may have either brown fur or black fur. These fur colors can help nice hide from predators. For example, a mouse with brown fur fan blend in with brown sand.
The table below describe a possible popular rock pocket mice at the state of a period of time and at the end of that period. The table shows fur color in he population each point in time
(#) Brown (#)Black. (%) Brown (%) black
Start. 110. 390. __%. __%
End. 100. 150. __%. __%
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