Proteins are extremely important. They are large, complex molecules that are used for structural support, storage, to transport substances, and as enzymes. They are a sophisticated, diverse group of molecules, and yet they are all polymers of just 20 amino acids.
I think the correct answer would be algae. The cell walls of some algae are composed of minerals such as calcium carbonate. Algae belongs to the kingdom of protista where most are single celled and found in bodies of water. Most of the cell walls have microfibrils of cellulose and some contains other substances like silica, polysaccharides and calcium carbonate.
Answer:
When they no longer have a sense of what is going on in their lives and dont have control over when they stop
Explanation:
