Ossification is the process of laying down new bone material by cells called Osteoblasts.
bone marrow
Red blood cells are produced in bone marrow.
The main organ in the excretory system is the kidney. The kidney is the main organ that controls the excretory systems for vertebrates. It is also part of the Urinary system which is part of the excretory system.
Mucus.
to send more blood to an injury to help heal it
yes very much so :)
only one person knows this MiNd ~FrEkA~
Respiration happens all the time, 24/7, in all living organisms.
what is the function of skeletal system
The digestion system has this job.
the ball-and-socket joint