What body systems are primarily responsible for waste elimination?

• A. Skeletal, Immune, and Digestive
• B. Integumentary, Digestive, Excretory, and Respiratory
• C. Ciculatory, Muscular, and Nervous
• D. Reproductive, Endocrine, and Lymphatic

Answer: (B)

The primary body systems responsible for waste elimination include the integumentary, digestive, excretory, and respiratory systems.

The integumentary system, which includes the skin, helps eliminate waste products such as salts through sweat. The digestive system breaks down food and removes undigested remnants and other waste through feces. The excretory system, particularly the kidneys, filters blood to remove liquid waste, producing urine. The respiratory system plays a crucial role by removing carbon dioxide, a waste product of metabolism, through breathing.

Together, these systems work collaboratively to ensure that various waste products are effectively removed from the body, maintaining homeostasis and preventing the buildup of harmful substances. This comprehensive involvement of multiple systems in the elimination of waste is what makes this option the correct choice.