How old, is the tree, and does this represent any kind of graph?
The answer is Disaccharide
Answer:
Proteins serve many functions within an organism, such as mammals. Proteins are used to grow and repair tissues. ... Proteins also form hormones, which transport chemical messages between tissues and organs. Proteins are also important building blocks of bone, carilage, muscle, skin, and blood.
Link:
https://www.enotes.com/homework-help/outline-role-proteins-life-mammals-547196
Answer:
A barometer
Explanation:
It is commonly used to measure atmospheric pressure