The correct answer is A. Homeostasis.
Homeostasis is the maintenance of a relatively constant internal environment despite fluctuations in the external environment. It is an essential process for all living things, as it allows them to function properly and survive.
Homeostasis is achieved through a variety of mechanisms, including negative feedback loops, which help to regulate the body’s systems. For example, when the body’s temperature rises, the hypothalamus (a part of the brain) sends signals to the body to cool down. This may include sweating, shivering, or vasodilation (widening of the blood vessels). When the body’s temperature falls, the hypothalamus sends signals to the body to warm up. This may include shivering, vasoconstriction (narrowing of the blood vessels), or increasing the metabolic rate.
Homeostasis is a complex process that is essential for life. It is achieved through a variety of mechanisms, including negative feedback loops. Homeostasis allows the body to maintain a relatively constant internal environment despite fluctuations in the external environment.
Exotherms are organisms that produce their own heat. Endotherms are organisms that rely on external sources of heat to maintain their body temperature. Homeobox is a DNA sequence that is involved in the development of body structures.
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