Answer:
the inheritance of one pair of factors is independent of the inheritance of the other pair.
How do nerve<span> impulses </span>cause muscle<span> contraction? Skeletal </span>muscle<span> is under voluntary control. </span>Nerve<span> impulses that originate in the central </span>nervous system cause muscles to contract<span>. Both neurons and </span>muscle<span> tissue conduct electrical current by moving ions across cellular membranes. </span>
Having a messy work station
