Why do cells need so many different organelles and structures? ?

Cell organelles. Every cell in your body contains organelles (structures that have specific functions). Just like organs in the body, each organelle contributes in its own way to helping the cell function well as a whole. The nucleus, mitochondria and chloroplasts are all organelles.

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one pad at the centre of the baby's chest and the other pad on the centre of the baby's upper back.

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