Answer:
I make a loud sound when I'm changing. When I do change I get bigger but weigh less. What am I?
I have a name that's not mine and no one cares about me in their prime. People cry at my sight and lie by me all day and night.
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
I start with an E end with an E and have a letter in me.
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
A little house full of meat, no door to go in and eat.