7. in practical terms, the mass of an object is closely related to its is

Volume

Explanation:

In practical terms, the mass of an object is closely related to its volume. This means that, generally, larger objects are heavier, and smaller objects are lighter. However, this is not an absolute rule. Mass refers to the amount of matter an object contains, while volume refers to the space it takes up. Different materials and density can account for various masses even in cases where the volume is the same, and vice versa.

a- all cells come from pre-existing cells

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