Which one of the following is not a function of the stomach? A. Secretion of hyrdochloric acid to dissolve connective tissues and activate enzymes
B. Secretion of mucus to protect the stomach lining
C. Mixing the food
D. Absorption of many nutrients
E. Storage of food

really dont know just need some points

japan is the correct anwser because i already took the test and i passed it

the answer is: the „power stroke“ step.

muscle contraction can be divided into a few steps:

1. the release of ach (acetylcholine) in the synaptic cleft, binding of ach for its receptor and consequently opening of the ca channels.

2. the release of ca, binding of ca for the troponin

3. troponin shifting the tropomyosin, which was blocking the active site on the actin

4. myosin heads attaching to actin by breaking down atp to adp+ pi

5.   formation of the ‘cross-bridge’ on the active site of the actin filament by myosin head

6. “power stroke” -the cross bridge pulls actin, which slides over the myosin

9.     7. the release of adp completes the cross-bridge movement and atp attaches to myosin, breaking the actin-myosin cross bridge.