Answer:
Why is drinking milk not good enough to make the bones strong?
Despite all the calcium that dairy contains, some believe that its high protein content can cause osteoporosis. The reason is that when protein is digested, it increases the acidity of the blood. The body then pulls calcium from the blood to neutralize the acid.
Why are skeletal muscles are necessary for locomotion?
Vertebrates move by the actions of muscles on bones. Tendons attach many skeletal muscles across joints, allowing muscle contraction to move the bones across the joint. Muscles generally work in pairs to produce movement when one muscle flexes (or contracts) the other relaxes, a process known as antagonism.
