In contrast to compact bone, spongy bones does not contain true Haversian systems( tiny tubes that form a network in bone and contain blood vessels) but consist of an irregular lattice of thin plates of bone called trabeculae.The spaces between trabeculae are filled with marrow. The cells of the red marrow are responsible for producing blood. Within trabeculae lie lacunae which contain osteocytes.<span> Blood vessels from the periosteum penetrate through to the spongy bone, and osteocytes in the trabeculae are nourished directly from the blood circulating through the marrow cavities.</span>
Answer:it causes when liquid or oil gets warm and rises.
When sun heats the gases it causes them to rise.
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wheres the photo? i can answer it if u give photo
Scientific evidence must be reported, verified and accepted by the scientific community
prophase is actually the first stage. In interphase, the cell gets itself ready for mitosis or meiosis.
