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Liono4ka [1.6K]
3 years ago
5

Homeostasis refers to the necessity of an organism to maintain constant or stable internal conditions. what structure helps cell

s maintain homeostasis by regulating the movement of materials into and out of a cell?
a. chloroplast
b. nuclear membrane
c. mitochondrion
d. cell membrane
Biology
1 answer:
expeople1 [14]3 years ago
5 0
The cell membrane helps it
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See Explanation

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The question is incomplete as the diameters of the Willapa Bay urchins were not given.

However, I'll give a general way to solve this problem.

Average is calculated using:

Average = \frac{\sum x}{n}

i.e. Sum of all diameters divided by the number of bay urchins.

The diameter of urchins is usually between 6cm to 12cm; So, I will assume the following diameters for 10 urchins.

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Using the above data, the average is:

Average= \frac{10+8+10+7+9+10+6+10+8+8}{10}

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<u />

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