Fish are generally cold-blood. But even some fish have "warm-blooded" features. Swordfish and some sharks have circulatory mechanisms that keep their brains and eyes at above ambient temperatures.
It depends on, among other things, the length of time, the medium the human is in, what they are wearing, and their conditioning.
Being in cold temperature air with proper shelter and clothing, humans can survive indefinatley, even if the temperature is below zero degrees. But a person in regular clothing immersed in water just above freezing will last only a few minutes.
As for heat: A sauna can reach temperatures of close to 200 degrees, but since the air is around 10% humidity, it actually feels comfortable and has many healing properties. But if the air is 90% humidity, then the safe temperature is more like around 110 degrees.
So maybe a better question to ask is: At what temperature and humididty combinations are humans capable of surviving?
The question must be more specific because are we talking about external temps or internal. A bodies internal temp can only survive up to 108F it starts to die around 105F which is when the proteins inside the body begin to cook apart. As far as the coldest the human body can get is in the 70'sF and potentially lower depending on the time spent at the temp. The body getting cold is much safer than the body getting to warm.
The reason humans function worse and worse in the heat the more moisture there is is our body's main way of cooling off is sweating. If there is a high amount of moisture in the air our sweat can't evaporate and our bodies can't cool down.
I'm not sure but I believe once an external temperature above 212 degrees is reached a human will begin to die because of their internal fluids simply starting to boil, remember we are 70-90% water..
The coldest temperature your body can get before shutting down and going into hypothermic shock is 89 degrees. I believe that below 83 is unsurviveable and all organ failure, including brain.
I would imagine that the entire internal body temperature would have to be 212 degrees in order for it to boil. Look at what happens when you throw a turkey in the oven at 400 degrees for x amount of time, it takes quite a while to reach 160 degrees, well below boiling.
Many do, some don'tAn explosion is nothing more than the rapid release of energy. This is most commonly due to the rapid combustion of a material, although nuclear explosions do not involve combustion. The combustion of any hydrocarbon or other carbon-containing substance ALWAYS produces carbon dioxide. This might include explosion due to a natural gas or gasoline.
It is possible, however, to explode substances that do not contain carbon, such as pure hydrogen (the very famous Hindenburg disaster in 1937 is a classic example of a very big hydrogen gas explosion -- see the Web Links to the left of this answer for more about that and an impressive video -- skip ahead to 3:30 min to see the explosion!). An explosion of hydrogen produces only water vapor (H2O), NOT carbon dioxide (CO2). SO2, sulfur dioxide, is also commonly ford when sulfur is burned instead of carbon. Azide salts like NaN3 are commonly used to explosively inflate car airbags. On detonation, they decompose to the elemental metal. This is a favourable transition due to a positive change and the formation of highly stable free nitrogen gas.
Also, nuclear (both fusion and fission) themselves do not produce carbon dioxide, although they may cause surrounding objects to incinerate, which would release carbon dioxide.
See the Web Links to the left of this answer for some impressive videos of different types of explosions, including ones that do and don't produce CO2 emissions!
Another product of what is known as incomplete combustion is COCO, or carbon monoxide, can be formed when there is not enough combustion for carbon dioxide, and is extremely poisonous to humans. It is another potential product of an explosion, which is essentially combustion.
9 ATPs and 6 NADPH per 3 CO2 to make 6 G3P which could be used for glucose (C6H12O6)
Honey reduces cortisol levels by reacting with the reagent IgA to release glucose. With too much glucose in the blood stream, cortisol is not needed in order to stimulate further glucose release.