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That's true because the basic functions of a multi-cellular plant occur in the cell and like any other cell, unicellular alga are also cells thus basic functions such as respiration, excretion, growth occur in both multicellular organisms as well as unicellular organisms
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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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Answer:
It decreases the oxygen content of the atmosphere and can increase CO2 contant.
Explanation: