Periosteum is the thin yet tough outermost layer of bones. Its many collagen fibers support the bone and firmly connect it to the surrounding structures. Osteogenic cells in the periosteum play a vital role in the growth and repair of bony tissue.
2. C (2, 1, 4, 3)
3. A (Determine the volume by how much water it displaces, then divide mass by volume)
4. H (Water all the containers the same amount and at the same time)
5. A (1.7 mL)
Diffusion is is like (spreading around), so it wouldn't smell that strong the further away you got... but you would still smell it
I'm afraid none of those is correct. The correct option would be subspecies. Subspecies are different variations, one could say, of a same organism.
Hope it helped,
Happy homework/ study/ exam!
