Answer:
The stem cells differentiate into chondroblasts. 3. These chondroblasts, located at the periphery of the old cartilage, begin to produce and secrete new cartilage matrix. As a result, they push apart and become chondrocytes, each occupying its own lacuna.
Explanation:
Trophic Levels describe the transfer and different stages of the organisms transferring energy. I just called it Trophic level energy flow in school.
I am gonna say answer b. Spores
Certain Protiens, amino acids form protiens