Which of the following is an example of homeostasis? darkening a room makes it easier to sleep. ingesting too much alcohol leads to vomiting. sleeping leads to dreaming. tapping the knee with a hammer results in the leg suddenly kicking.

An example of homeostasis is to vomite after ingesting too much alcohol.

Explanation:

Homeostasis is a stable and constant state of the environment in a biological system. The three most important homeostatic mechanisms are thermoregulation, osmoregulation and regulation of blood sugar levels.

Several mechanisms and processes regulate the internal environment in order to maintain homeostasis. It is mainly animals that have the ability to actively influence their situation. This happens in different ways, often evolutionarily adapted to the environment in which the animal lives. Many animals instinctively escape from an unfavorable environment, for example, with too high or low heat, salinity or oxygen content. Inside the animals is an active system with three main components: a receptor that detects the change, a control organ that restores homeostasis and an effector that performs the control organ's orders.

Following this concept, vomiting after a high intake of alcoholic beverages implies an involuntary reaction of the nervous system aimed at restoring the homeostasis conditions of the organism, through the elimination of the elements that destabilize it.