How can osteocytes remain alive within bone? Select one: Osteocytes have membrane extensions that protrude from bone and allow them to exchange materials with the surrounding fluids. Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes. Bones are composed of only dead or dormant cells. Bones are hollow in the middle and the low pressure there draws fluid from the blood that nourishes the osteocytes.

Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes

Explanation:

Through this Harvesian canals, blood vessels that contain the necessary nutrients for their growth and development are brought which keeps them alive

Osteocytes have membrane extensions that protrude from bone and allow them to exchange materials with the surrounding fluids.

Explanation:

Osteocytes are cells that are found inside a fully formed bone. They perform a number of functions, such as:

amber has allowed scientists to study dna that has been preserved over millions of years.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."