What is the composition of the human body?
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By Weight\n          Oxygen      65%\n          Carbon      18%\n          Hydrogen    10%\n          Nitrogen     3%\n          Calcium      1.5%\n          Phosphorous  1.0%\n          Potassium    0.35%\n          Sulfur       0.25%\n          Sodium       0.15%\n          Chlorine     0.15%\n          Magnesium    0.05%\n          Iron         0.0004%\n          Iodine       0.00004%\n\nSo, for a 150 lb person, she has \n97.5 lb of Oxygen\n27 lb of Carbon\n15 lbs of Hydrogen\n4.5 lbs of Nitrogen\netc.
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Teeth and bones and hair\n\nMilk it does a body good, pass it on!
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Body weight may be divided into three types: bones, muscle and fat. In a healthy female of average weight, bones make up 12 percent of total body weight, muscle/lean tissue about 35 percent and body fat about 27 percent. The remaining body weight is skin, connective tissue, tendons, blood, organs and so forth.\n\nThe number of muscles in the human body varies from about 656 to 850, depending on which expert you consult. No exact figure is available because there are a variety of opinions about what constitutes a distinct muscle (versus a part of a complex muscle). Also, there is some variability in muscular structure between individuals.
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proteins, glucose/sugars, basically everything you eat.
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No, the human body is a very large collection of atoms, the cells are made up of all sorts of things taht each could be divided into smaller things and that on the other hand maybe can bedivided into smaller things until you find that all that is left is atoms.
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The 4 basic elements that make up about 95% of the human body are hydrogen, carbon, oxygen, and nitrogen
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Our skin is the largest organ of our body. Skin serves several functions: it guards the underlying organs and muscles, it regulates our body temperature, it provides our sense of touch and it synthesizes vitamins D and B.\n\nThe skin includes parts like our hair and nails. In addition, there are several layers to skin, e.g., the epidermis and the dermis. Skin accounts for 15% of our body weight so you can see why it's called the largest organ in our body.\n\nThe above is basic information and you can already see how complex skin is. So there's lets to research and talk about when you're talking about skin.\n\nHope this helps.
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all cells are composed of atoms in the nucleous.  All cells have a cell wall/cell membrane, cytoplasm/protoplasm.\ngolgi bodies\n\n\nYou can't have a cell without these things
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One way is to look on the internet for "human body" or "human anatomy" or something close to that.  http://www.google.com/ is the web site that can point you in the right direction.\n\nOne other way, is to ask a teacher at school.  For high school, ask a biology teacher.\n\nWe people are made to be healthy and happy.  So we want to have a sound mind in a sound body.
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nutrition in biochemistry consists of assimilation, digestion excreation ,absorption.
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Human biology. I like it best because there is so much that we can and will learn about the human body. The human body is the most sophisticated machine ever created. God is a total genius.
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Your skin is your largest organ. It covers your entire body and has a surface area of around 2 square metres. Its thickness varies from 0.5mm on your eyelids to 4mm or more on the palms of your hands and the soles of your feet. In total, it accounts for around 16 percent of your body weight.
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breathing, thought, eating, excersize, emotion, sickness, immunity and basically everything a human does would have some kind of chemistry involved considering we are multicellular organisms made up of many elements such as oxygen, calcium, carbon, nitrogen etc
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The skin. Although it is tissue, organs are just groups of tissues.
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Skin.\n\nIf you're talking about raw, physical size, then it's around everything else.  Largest!\n\nIf you're talking about weight, it accounts for about 15% of the total body mass, more than any other organ.  Largest!\n\nIf you're talking about surace area, it's about two square metres in size.  Largest!\n\nThough I should say that's just an AVERAGE human.  I seem to recall a case of a woman in Texas who had a sixty pound tumor in her gut.  Totally benign, but it just kept getting bigger and bigger.  She thought she was just gaining weight...
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Not clear what you are asking.\n\nIf you are asking if any elements exist as pure elements, not in any compounds, the answer is "no".\n\nBut there are quite a few elements that make up the human body in various proportions.  Carbon, Hydrogen, Oxygen, Sodium, Potassium, Chlorine, Nitrogen, Sulfur, Phosphorus, Iron, Magnesium, Calcium make up a good bit of your body.  But it is how they are combined that is important.
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chemical composition simply means the chemicals which make \nup a molecule  or compound and the amount of each.