Which of the following is the best example of an organism maintaining homeostasis?

The question lacks options, the options are:

A. A lion panting after a chase.

B. A Venus fly trap catching a fly.

C. A ladybug becoming infected by a virus.

D. A prairie dog digging tunnels in the ground

The answer is A. A lion panting after a chase.

Explanation:

Homeostasis is a biological process that involves the ability to maintain an internally stable environment irrespective of environmental changes. Organisms need certain internal requirements to be met in order to function optimally, the process of maintaining this internal environment despite the external changes is referred to as HOMEOSTASIS.

In this question, the lion panting after chasing its prey is the best example of homeostasis because when organisms engage in rigorous activities like running, their cells tends to be deficient of oxygen because more oxygen is needed than can be attained. Oxygen is required for aerobic respiration to occur. When these happens, the animal's cell uses another means of respiration that builds up lactic acid in the muscles.

In order to get rid of these lactic acid in the muscle cells, the body is conditioned to take in more oxygen which is physically expressed by panting and breathing heavily for air (containing oxygen). Hence, the lion is trying to maintain the oxygen level in its cells by panting to get more oxygen, an example of HOMEOSTASIS.