You are presented with the question "What do muscle contractions give the ability to happen?" and the following answer choices: 
- heat energy
 - movement
 - metriculation
 - Energy
 - fallopian tubes
 - ejaculation
 - kinetic energy
 - sperm

Now knowing that ejaculation occurs when muscle contractions propel sperm from the epididymes and sperm motility is the ability of the sperm to move, choose the best answer.


 

      ejaculation   