how many systems are there in the body?
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Cardiovascular\n\nDigestive\n\nImmune\n\nUrinary\n\n \nNervous\n\nMuscular\n\nReproductive \n\n\n \nRespiratory\n\nSkeletal\n\nLymphatic
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it is a system that comprises of the kidneys ,ureterand urethra where the function of this system is to collect the nitrogenous and other kind of harmful wastes and eliminate it from the body .this system also contains the sweat glands and the lungs as they eliminate the the wastes,regulate the temp of our body and release the harmful co2 from our body respectively .kidney forms stores and then eliminates the waste as urine from the body
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cell-tissue-organ-organ systems-organism (population)\nTissues are a group of specialized cells that perform a function. Organs are groups of specialized tissues that perform an even more complex function. Organ systems are groups of organs that perform a function in a series of complex, yet related steps. An organism is a body with  several organ systems necessary to maintain homeostasis. This can be extended to population which is several organisms existing together to survive (think food webs).\n\nUnicellular organisms do not have specialized cells. They have only one cell to perform all the functions it needs.
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Between family systems, regional systems, traditional systems, mixed systems, etc.... too many to count!
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average human body has 206 bones.  Some have one or two more or less.\n\nas for the joints, I've only had one today...
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The skeletal system of an organism is what gives it structure and form, and holds internal organs.
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human body and molecular biology..
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in our body there are 12 pairs of cranial nerves&32 pairs of spinal nerves
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Nervous System - brain and spinal cord\nDigestive System - large intestine and stomach
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A lot, actually. The kidney and the small and large intestines are the most well-known ones. But your skin actually does it's share of excreting waste from your body too. And so do your lungs. Carbon dioxide is a waste product after all.
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Do you really mean plants? If so there are quite a few.\nIf you meant planets then most people say 9, although there is a big controversy about what makes something a planet. We have discovered another named Sedna and a couple more that may eventually be called planets.
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digestive system\nnervous system\nresperatory system\nexcretory system\ncirculatory system\ncardiovascular system\n\npretty much what the person above me said, the same as humans.
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We have 206 bones in the adult human body.
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The human body, consists of an estimated 20 to 30 trillion cells.
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Medical, Body, THE NERVOUS SYSTEM.\n\nhttp://www.infovisual.info/03/038_en.html\n\nhttp://www.infovisual.info/03/039_en.html\n\nhttp://www.emc.maricopa.edu/faculty/farabee/biobk/BioBookNERV.html\n\nhttp://faculty.washington.edu/chudler/neurok.html\n\nhttp://faculty.washington.edu/chudler/introb.html\n\nModelling the Nervous System\n\nhttp://faculty.washington.edu/chudler/chmodel.html\n\nGood luck.\n\nKevin, Liverpool, England.
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Anatomy\nBiochemistry\nPathology\nPharmacology\nPhysiology\nOrganic Chemistry\nBasic Biology\nPhysics
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You mean like a system? Digestive system is stomach, intestines, liver, etc. Immune system & others. Not 100% clear on what you want.