Which of the following describes how the immune system aids the body in maintaining homeostasis?

• A. By producing digestive enzymes to break down food in the stomach
• B. By directly regulating blood glucose levels through insulin secretion
• C. By identifying and eliminating pathogens to prevent infection and disease
• D. By generating electrical impulses to coordinate muscle contractions

Answer: (C)

Verified step by step guidance

1. Step 1: Begin by understanding the concept of homeostasis, which refers to the body's ability to maintain a stable internal environment despite external changes. This includes regulating temperature, pH, and protecting against infections.
2. Step 2: Review the role of the immune system in the body. The immune system is responsible for identifying and eliminating pathogens (such as bacteria, viruses, and fungi) that can disrupt the body's normal functioning and lead to disease.
3. Step 3: Analyze each option provided in the problem. For example, producing digestive enzymes is a function of the digestive system, not the immune system. Similarly, regulating blood glucose levels through insulin secretion is a function of the endocrine system, specifically the pancreas.
4. Step 4: Consider the correct answer, which states that the immune system aids in maintaining homeostasis by identifying and eliminating pathogens. This prevents infections and diseases that could interfere with the body's ability to function properly.
5. Step 5: Eliminate the incorrect options and focus on the correct explanation. The immune system does not generate electrical impulses (a function of the nervous system) or directly regulate blood glucose levels. Its primary role in homeostasis is defense against harmful microorganisms.