How many neuromuscular junctions are in each muscle cell

One

Explanation:

A neuromuscular junction is a chemical synapse between the muscle fibre and the motor neuron. It helps the motor neuron to send a signal to the muscle fibre, triggering contraction in the muscle.

One Muscle Fiber has one neuromuscular junction in most skeletal muscles. A mature neuromuscular junction is innervated by one motor nerve terminal ; thus, the relationship between a given muscle fibre and motor neuron is one-to-one.

the  different  of  these  two  are  that  they  differently  handle  their  team.

an  expressive  leader  focuses  on  the  task  at  hand  and  make  sures  that  their  goal  is  achieved.  they  accurately  finish  the  task.  an  instrumental  leader  on  the  other  hand  works  on  the  unity  of  the  group,  they  care  more  about  their  employees.  all  the  while  creating  a  good  environment.