Which example shows an organism that cannot reach homeostasis through internal changes?

An example of an organism that cannot reach homeostasis through internal changes is a human with a severe spinal cord injury.

thats not an answer

Apologies for the previous response. An example of an organism that cannot reach homeostasis through internal changes is a fish living in a polluted water body. The fish's internal systems may not have the capability to detoxify or eliminate the pollutants present in the water, thereby preventing it from reaching homeostasis through internal processes alone.

An example of an organism that cannot reach homeostasis through internal changes is a reptile, specifically a reptile that relies on external sources of heat for regulating its body temperature, such as basking in the sun or seeking shade. These reptiles are known as ectotherms. Unlike endotherms (organisms that can regulate their body temperature internally), ectotherms rely on external factors to control their body temperature. This means that they cannot make internal adjustments to maintain a constant body temperature. Instead, their body temperature fluctuates with the temperature of the environment.

To determine an example of an organism that cannot reach homeostasis through internal changes, we need to understand the concept of homeostasis first. Homeostasis refers to the maintenance of a stable and balanced internal environment within an organism despite external environmental fluctuations. It involves various physiological processes that allow an organism to regulate its internal conditions, such as temperature, pH, and nutrient levels.

Now, let's consider an example that illustrates an organism incapable of achieving homeostasis through internal changes. One such example is ectothermic organisms, often referred to as "cold-blooded" animals. These organisms, like reptiles and some fish, rely primarily on external sources to regulate their body temperature. Unlike endothermic organisms (mammals and birds) that utilize internal mechanisms, such as shivering or sweating, to maintain a stable body temperature, ectotherms cannot generate sufficient metabolic heat to regulate their body temperature internally.

Ectothermic organisms are unable to internally adjust their body temperature to match the external environment accurately. Instead, their body temperatures fluctuate based on the surrounding conditions. While they can make behavioral adjustments like seeking shade or basking in the sun to influence their body temperature indirectly, they cannot achieve precise internal regulation of their body temperature.

Hence, ectothermic organisms serve as an example of organisms that cannot attain homeostasis through internal changes alone.