True the heart like any muscle strengthens when you use it
it wont let me post it so i'll comment on the question box
It provides structure to the body. With our our strong healthy bones to support us, we would just be walking skin bags with organs and hair. The bones give us the legitimate support for everything, the muscles attach to the bones, so while it may feel like your muscles are doing all of the work, they aren’t. Your bones play a huge roll, in you everyday moving. What makes bones stronger? MILK!
Answer:
pm mo ako sesend ko sayo lahat ng sagot ko