The sliding filament theory is the explanation for how muscles contract to produce force. As we have mentioned on previous pages, the actin and myosin filaments within the sarcomeres of muscle fibres bind to create cross-bridges and slide past one another, creating a contraction.
The answer would be True. Hope this helps :))
Sit up have both an upper body and lower body rating
weight training
while it might help with her strength her muscles will be so sore and they will tighten up actually restricting her flexibility
Either B or C but if i was you i will go with the C because is food who provide energy and if u have an intestinal failure food cannot move true your body no food=no energy so C for me .tell me if it helps