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Multiple Choice
Which of the following is a function of both the excretory system and the digestive system?
A
Absorption of nutrients
B
Elimination of waste products
C
Regulation of blood sugar levels
D
Production of digestive enzymes
Verified step by step guidance
1
Understand the primary functions of the excretory system, which include the removal of waste products from the body, regulation of water and electrolyte balance, and maintenance of acid-base balance.
Recognize the main functions of the digestive system, which involve the breakdown of food, absorption of nutrients, and elimination of solid waste.
Identify the common function shared by both systems: the elimination of waste products. The excretory system removes liquid waste through urine, while the digestive system eliminates solid waste through feces.
Consider why absorption of nutrients, regulation of blood sugar levels, and production of digestive enzymes are not functions shared by both systems. Absorption of nutrients is specific to the digestive system, regulation of blood sugar levels is primarily managed by the endocrine system, and production of digestive enzymes is a function of the digestive system.
Conclude that the elimination of waste products is the function that both the excretory and digestive systems perform, as they both contribute to the removal of different types of waste from the body.