I believe the answer is wave summation. They result when one wave of contraction is added to another. A 2nd contraction of the muscle occurs before relaxation of the first contraction is complete. When the stimuli is not strong to enable muscle contraction, it continues to add stimuli until the muscle contracts.
Answer:
<h3>The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.</h3>
The answer would be between b and d but i would go with d
For the answer to the question above, <span>A
sandwich made with bread and lean turkey is ideal and good because the
carbohydrate/protein mixed together enhances the muscle-building effect of his weightlifting and running activity. This is a food that is good for this kind of workout</span>