The advantage of having many nuclei in a skeletal muscle fiber is

a) the ability to produce more atp with little oxygen.
b) the ability to contract.
c) the ability to produce large amounts of the muscle proteins needed for growth and repair.
d) the ability to store extra dna for metabolism.
e) both c and d

The correct option is C.

The nucleus is the control center of the eurkaryotic cells. The DNA, which is the genetic material of the cell is localized inside the nucleus. The amount of nucleus found in different cells of the body differs; some cells have one nucleus, some have multiple nucleus while some do not have nucleus at all, a good example of this are the red blood cells. The muscle cells are typical examples of cells that have multiple nuclei.

The muscle cells are attached to the skeleton and they facilitate movement in vertebrates. Because of its functions and its constant need for repair, due to wear and tear, the muscle cells need huge quantity of protein, that are processed at accelerated speed for proper functioning of the muscles cells. The amount of protein needed is greater than what one nucleus can efficiently handled, thus, the need for many nuclei. The DNA, which is found in the nucleus is responsible for the transcription of RNA, which is then transported to the cytoplasm for the process of protein translation.  

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."    

b.have there own function.