Please help me i dont understand how this stuff works

Balloon 2

Explanation:

Opposite charges (positive/negative) attract, like charges (positive/positive or negative/negative) repel.

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the second one

Explanation:

opposites charges attract so a negative charge is attracted to a positive charge and the second balloon has the most positive charge

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.