What does constant body temperature mean for animals

The constant body temperature is conducive to the normal metabolism, and is also conducive to the regional distribution, survival and reproduction of animals, and can adapt well to the environment.

When homeothermic animals are cold, they regulate their body temperature in the following ways: (1) ** microvascular constriction to reduce the flow of blood through **, so as to reduce the loss of body heat. (2) Increase appetite for energy (4) Muscle tremors increase body heat. When the weather is hot and after exercise, the ways to regulate body temperature are (1) ** blood vessels dilate, so that a large amount of blood flows in**, which helps the divergence of body heat (2) loss of appetite (3) slow activity (4) sweat is discharged through ** sweat glands, and sweat evaporation helps heat dissipation.

Human beings are homeothermic animals, and all metabolic activities in the body have a fixed temperature range, and cannot operate in an environment that is too high or too cold. If the temperature is too low, the metabolism is retarded, resulting in the central nervous system dysfunction and falling into coma; If the temperature is too high, the metabolism will not only be too fast, but also physically exhausted, and may also cause muscle cramps and even coma. Our body fat and our muscles produce heat.

So people usually feel cold before they die because their physiology is weak. Homeothermics: Animals that keep their body temperature constant through metabolism (e.g., mammals). Birds.

Humans) The temperature of these animals can be maintained within a certain range and is not affected by environmental changes (because body temperature affects the activity of cytoenzymes and the rate of reaction), while the body temperature of homeothermic animals is mainly controlled by the following two things: 1Heat produced by metabolism 2

Maintain a balance between heat retention and heat loss (e.g. through diet) and humans are homeothermic animals. In order to keep the body temperature constant.

It is necessary to continuously expel the heat generated by the body's metabolism (sweating) to the outside worldWhen the temperature is close to or higher than the temperature (about 37), the body will not dissipate heat smoothly, and then the human body will increase the amount of sweat to dissipate heat about 2 million 5 million sweat glands in the human body, the function is to maintain the balance between heat radiation and heat dissipation and keep the body temperature constant. Otherwise, if the temperature is higher than 33 or the body temperature is above 37, the sweat glands do not sweat.

People get sick or feel unwell.

Because the body temperature is about 37 degrees, it is just right for survival and suitable environment.

It is well known that the body temperature of a person is around 37 under normal circumstances. But if you want to ask the end, not all of them can be answered.

That's because 37 degrees Celsius is the best for survival and the most in tune with nature.

Animals that live on the surface of the earth must withstand temperature fluctuations 24 hours a day.

Maintaining a constant temperature requires a complex brain to exercise precise control over the body, and only a very small percentage of organisms have adopted this evolutionary process.

All in the Earth's environment, maintaining a constant body temperature is the best evolutionary choice for animals as complex as us. Otherwise, fluctuating brain temperatures may lead to unsatisfactory responses, and one of the possible responses is that if learning takes place at different brain temperatures, the results may be different each time.

For enzymes, the ambient temperature of 37 is the most suitable for it, even if it is high, it will not work, nor will it be low. In addition, the human body gyrus.

At 37 hours, the amount of heat generated and the amount of heat discharged is minimal, which is very conducive to keeping the body temperature constant. At 37, the calorific value of human body temperature is less, which is beneficial to human evolution.

The best evolutionary choice for animals. Otherwise, fluctuating brain temperature may lead to an inability to respond, and one of the possible responses is to learn from it.

Because the distance between the sun and the earth is the same, the body temperature of homeothermic animals is around 37.