The energy source for sperm to swim comes from

The energy source of the sperm for them to swim is the protein breakdown by mitochondria in the midpiece of the sperm.

Mitochondria are double membrane-bound organelles found in the cells. It is said to be the "powerhouse of the cell". They provide ATP as a source of chemical energy for the cells.

Be prepared.experiment breaking point of rubber bands measured in certain amount of temperature communication

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