The real biological question is why do we die? Why can't our cells just continue to divide like they did when we were kids? Check out answersingenesis.org to find out.
2007-02-25 00:43:35
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answer #1
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answered by Anonymous
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ans 1: it is purely biological.
2: nature and natural.
3: life,just an event of breeding,and death an end of each life after decaying.
4: it becomes a philosophical answer only to human.
5: Only human interpreted the biological events and truth in to a philosophical question,not any other living thing in this world.
All love U.
2007-02-25 08:48:57
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answer #2
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answered by dpkdrj 5
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Death is the end of life in a biological organism, marked by the full cessation of its vital functions. All known multicellular organisms eventually die, whether because of natural causes such as disease, or unnatural ones such as accidents. Death has been described and personified throughout history in many different ways and tones, negative, positive or neutral.
2007-02-25 08:27:34
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answer #3
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answered by ramgopal r 1
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The exact definition for death has not been proposed yet. However, there are two theories regarding death.
1) A person can be considered as dead, if his brain has died.
2) A person is considered as dead only if the cardiac death occurs.
2007-02-25 11:30:38
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answer #4
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answered by poornima_durairaj 2
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I do't know whether it is a biological or philosophical, but DEATH is the only thruth of this world. And we can't ignore it.
2007-03-01 06:29:51
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answer #5
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answered by sona 1
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Life is maintained in complex multi-cellular organisms like man by a delicate balance of homeostatic mechanisms which ensure optimal conditions for the functioning of all cells of the body. In view of the complexity of the homeostatic mechanisms that maintain life, it is not surprising that sooner or later something goes wrong at some crucial point and life comes to an end. What is more surprising is that this happens after such a long time. One of the keys to our long lifespan is provided by the basic units of life — the cells. Most cells of the body have a lifespan much shorter than the organism to which they belong. But the process of cell division ensures that new cells replace the cells that die. The process of replacement is so exact that we do not notice the turnover and treat each individual as a stable entity. Imagine a machine from which only a few parts are removed at a time, replaced promptly, and then a few more parts removed from elsewhere, again replaced promptly, and so on. Soon a time will come when all the old parts have been replaced by new ones. In effect, what we have is a new machine but we remain under the illusion that it is the same old machine!
Death is both an event and a process. It is an event after which a collection of matter that was once alive becomes just a collection of matter. Nobody has seen what it is that escapes from the living body during this radical transformation. That is why the phenomenon called life is shrouded in mystery. It naturally follows that the event during which it escapes is equally mysterious. But the event called death is the culmination of a process from which it cannot be divorced, viz. the process of aging.
In a broad sense, aging is a continuous process which begins with conception and ends with death. But what is more relevant to death is the impairment of function seen in the latter part of life. In this restricted sense, aging is due to a decrease in the efficiency of homeostatic mechanisms. Hence the body is unable to mount an adequate response to challenges originating in the external or internal environment. This increases the vulnerability of the individual to a number of diseases, to one of which he finally succumbs during the event called death. Although progress towards the event of death may be a slow and insidious process, the event is precipitated when the functional capacity of at least one of the vital organs falls below a critical minimum. When that happens, the heart stops beating or the lungs stop breathing. In either case, the result is that no part of the body any longer has a continuous supply of oxygen. However, modern technology may create situations which are not so clear-cut. The lungs may be made to work like bellows by mechanical means in a person who is unlikely to be ever able to regain meaningful life. That is what has necessitated the concept of brain death. If all the features of brain death are present, it is no longer justified to continue artificial life-support. But since artificial life-support may maintain a large number of organs in a viable state long after brain death, these organs are still fit to be transplanted where they can continue to live in another body.
Till about forty years ago, the boundary between life and death was clinically well defined. Death was defined as total stoppage of blood circulation and a consequent cessation of the animal and vital functions, such as respiration and pulsation (2). Doctors pronounced death when respiration and heartbeat had ceased, and when it seemed certain that these functions would not start and could not be started again (3). This could be presumed if heartbeat and breathing remained absent for at least ten minutes because the brain survives without oxygen for only about three minutes, and without a living brain, resumption of circulation and respiration is impossible. But now that respiration and circulation can be maintained artificially for long periods of time, brain death has become an important criterion of death. Now death is defined as the permanent and irreversible cessation of function of any one of the three interconnected vital systems, viz. nervous system, circulatory system and respiratory system (4). If any one of these systems fails, the other two also fail because the three systems are interlinked. The criteria of brain death are:
a. fixed, dilated pupils, unresponsive to light.
b. absence of corneal reflex, vestibuleocular reflex and cough reflex.
c. absence of cranial motor nerve responses to painful stimuli.
d. inability to breathe when the mechanical assistance provided by the ventilator is temporarily withdrawn.
e. coma and inability to breathe spontaneously continuously for at least six hours.
f. EEG silence continuously for at least thirty minutes. EEG silence is defined as an absence of electrical potentials over 2 microvolts from symmetrically placed electrode pairs over 10cms apart and with an interelectrode resistance of between 100 and 10,000 ohms (5).
However, very few countries insist that an EEG be available for determining brain death: clinical criteria are considered adequate. Being an expensive facility, EEG cannot be done in every hospital. Brain death has to be certified by a team of doctors consisting of a neurologist, anaesthesiologist and an experienced doctor of the intensive care unit of the hospital. The patient should be examined by the team at least twice at an interval of 6-12 hours. Furthermore, none of the members of the team should have any interest in transplantation of an organ from the patient.
The criteria of brain death have become necessary because artificial life-support systems can today keep intact in several patients the two cardinal signs of life, heartbeat and breathing, for several months after all reasonable hope of resuscitation has disappeared. Technology can thus maintain a semblance of life when the person is not alive any more. Therefore additional criteria are needed to determine the point at which hope may be abandoned, and support systems switched off. On the other hand, strict guidelines for certifying brain death are also necessary because artificial life-support can keep several organs in the body fit for transplantation for several hours after the person as a whole is, for all practical purposes, dead.
much on it try exel ur self
2007-02-26 09:26:16
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answer #6
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answered by veerabhadrasarma m 7
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In one sentence the death is going back to mother earth without life and so nothing to worry for this question in your mind
2007-02-26 09:08:23
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answer #7
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answered by ? 3
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In the past death was said that death means stoppage of cardiovascular, respiratory and central nervous systems. But in the modern science, death is considered as only stoppage of brainstem functions. Thus, death is stoppage of central nervous system.
2007-02-25 08:51:11
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answer #8
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answered by SMIT 1
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End of life
2007-02-25 11:59:54
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answer #9
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answered by Ammy 2
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The answer for this question is
Death means "It's fact".
2007-02-26 04:26:03
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answer #10
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answered by Anonymous
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