Mitosis is responsible for growth, repair and maintenance of an organism because it produces all the daughter cells that are genetically identical to one other and therefore creates new available cells that are specific to each tissue for growth and repair.
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The number of trials completed during the experiment would be the correct answer.
Symmetry is when one half of an object looks exactly like the other half. Symmetry can also be known as a reflection or a mirror. the halves look exactly the same even if you flip it, turn it, or slide it. For example, one half of a butterfly looks exactly the same as the other half. As well as a lobster, dog, snake, etc.