Answer:
The periosteum is one source of precursor cells which develop into chondroblasts and osteoblasts that are essential to the healing of bone. Other sources of precursor cells are the bone marrow (when present), endosteum, small blood vessels, and fibroblasts.
Answer:
Adenine and guanine are purines, while thymine, cytosine and uracil are pyrimidines.
Hope this helps! Sorry no one answered your question sooner :(
A) Belongs to Irregular galaxy
B) Belongs to Lens galaxy
C) Belongs to Elliptical Galaxy
D) Belongs to Spiral galaxy
Hope this helped.
Man ask your teacher
It’s helps