Answer:Bones are composed of a type of connective tissue called _____osseous_____ tissue, immature bone cells that produce bony tissue are called ________osteoblast____, large bone cells that digest bone tissue to shape the bone and smooth it out are called _______osteoclast_______, and mature bone cells are called _______osteocytes_______.
Explanation:bones are made up of 15% water,30% collagen fibres and 55 % mineral salts.
The collagen makes the bone soft and flexible.the mineral salt makes the bone fragile and strong.
The osseous tissue contains the osteogenic cells which are stem cells.they are differentiated into osteoblasts.osteoblasts build bones and are important in the external matrix of the bone.osteoclast forms osteocytes,which are the main bone cells.
Osteoclast breaks down older tissues in order to keep the bone strong.
Answer:
Hydrosphere and Biosphere
Explanation:
Answer:
B) Available energy decreases as trophic levels increase.
Explanation:
Each time an organism consumes energy, it absorbs it. When it dies the energy is released and only some of it is consumed the organism that eats the first organism. This continues and by the end there is very little energy left because most of it was released into the world.
