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Multiple Choice
Which body systems are primarily involved in the process of taking in nutrients and expelling waste from the body?
A
Respiratory and Circulatory systems
B
Skeletal and Muscular systems
C
Nervous and Endocrine systems
D
Digestive and Excretory systems
Verified step by step guidance
1
Begin by identifying the primary function of each body system mentioned in the options. The Digestive system is responsible for breaking down food into nutrients, which are absorbed into the bloodstream. The Excretory system is responsible for removing waste products from the body.
Consider the role of the Digestive system: it includes organs such as the mouth, esophagus, stomach, and intestines, which work together to process food, absorb nutrients, and eliminate solid waste.
Examine the function of the Excretory system: it includes organs such as the kidneys, ureters, bladder, and urethra, which filter blood to remove waste products and excess substances, expelling them as urine.
Compare these functions with the other systems listed. The Respiratory and Circulatory systems are primarily involved in gas exchange and transporting oxygen and nutrients, not directly in nutrient intake and waste expulsion.
Conclude that the Digestive and Excretory systems are the correct answer, as they are directly involved in the processes of nutrient intake and waste expulsion from the body.