Answer:
A) Elastin
Explanation:
Elastin is the principle load-bearing protien present in the wall of aorta. It is the protien which coil and recoils like a spring within the elastic fibres and accounts for elasticity of blood vessels. As during excerise , afterload is increased ,thus a stretch is produced in the vessels. Similarly im warm environment the vessels dilate this this stretch is produced by elastin.
A. In the blood and the cells lining various tissues of the organs
A MODEL can be used to help visualize microscopic structures and events
They all have diverse plant life with the occasion of animals sometimes
