1. Cell Division: This is the primary way most organisms grow. Cells divide through processes like mitosis (for body cells) or meiosis (for sex cells), creating new cells that increase the organism's overall size. Think of it like building a house with more bricks.

2. Cell Enlargement: Some organisms, particularly plants, can also grow by increasing the size of their existing cells. This is called cell enlargement. They take in nutrients and water, allowing the cells to expand and get bigger. This is like adding air to a balloon.

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