AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is true regarding fever in humans?
A
The sick individual is failing to maintainhomeostasis
B
The body is regulating it’sinternal conditions
C
The individual is responsing to itsexternal environment
D
The sick individual is temporarily lacking acharacteristic of life
Explanation: 

Detailed explanation-1: -A fever is a body temperature that is higher than normal. A normal temperature can vary from person to person, but it is usually around 98.6 °F (37 °C). A fever is not a disease. It is usually a sign that your body is trying to fight an illness or infection.

Detailed explanation-2: -"The hypothalamus responds to different factors, such as infectious organisms and injury, by releasing fever-producing chemicals that change body temperature, ” says Ward. Specifically, these chemicals cause blood vessels to narrow and pull heat into the innermost part of the body. The result is a fever.

Detailed explanation-3: -Our internal body temperature is regulated by a part of our brain called the hypothalamus. The hypothalamus checks our current temperature and compares it with the normal temperature of about 37°C.

Detailed explanation-4: -A part of the brain called the hypothalamus acts as the body’s thermostat. When all is well in the body, the hypothalamus is set at the normal body temperature. Fever develops when the hypothalamus is set to a higher-than-normal temperature.

There is 1 question to complete.