Want this question answered?
flexibility
A glass prism
COLLAGEN.
They bend because they are flexible. They're flexible because they have a rubber polymer base that allows the graphite core to flex with the rubber exterior.
Although the light is made up of photons, particles with energy but no mass, the general theory of relativity allows them to react to very strong gravitational fields (for example sun or black hole).
Bending the legs upon landing allows the parachutist to absorb the impact gradually, reducing the risk of injury. This helps distribute the force of the landing throughout the body more effectively. Straight legs could result in a more abrupt stop upon impact, increasing the chances of injury to the spine, legs, or hips.
your muscles
Your sliding joint allows your spine to bending or stretching
hamstrings and the quadriceps
Diffraction
COLLAGEN.
Your knee allows you to walk and bend your leg.
A glass prism
flexibility
COLLAGEN.
their malleability which allows them to bend
It connects bones and allows them to bend and move (like your elbow and knees).