Which of the following is similar among all living organisms on earth?
a. cellular function
b. social behavior
c. physical appearance
d. all of these

A. cellular function

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why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

yes

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