Answer: Arctic Sea ice extent is virtually impossible to accurately measure from the Earth's surface. Scientists use radiometry data and visible imagery collected from the satellites to determine the sea ice extent.
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The answer is letter c. anaphase
The control center of a cell is the nucleus!
The ring of fire is a circle that is covered with volcanos in its circumference. it erupts more that any other place because the more volcanos their are, the more these events will happen. another reason would be the tectonic plates. volcanos usually form on top of them. you must prepare for these events for your safety. their could be an earthquake any time, no mater where you are.
And endocrine cell is an outer cell i think and a target cell is an antibody which helps attack viruses
