During bone development, immature bone cells called produce bony tissue.

Cartilage

Explanation: now bone tissue is called cartilage it colds your bones together when the cartilage is fully grown it then hardens into bone.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.