Nuclear fusion occurs in the core area or centre of the Sun. Here, temperatures are around 15,000,000°C. Gravity pulls all of the mass of the Sun inwards, creating pressure so intense that nuclear reactions take place. The nuclei of hydrogen atoms smash together and fuse to form larger atoms such as helium nuclei.
C. Able to carry out all of the functions necessary for life.
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Vitamin D is essential for strong bones,because it helps the body use calcium from the diet.
Answer:
earth worm is really fat and digestive system means u eat some and digesteds
The Iron in the molecule binds to the oxygen. Carbon Dioxide does not bind to a cell but rather, is carried in the blood as bicarbonate.
