Question

students are making tables to organize different organ systems and their functions. which table best shows some functions of the circulatory, respiratory, and digestive systems? (tables and options a, b are shown with functions related to these systems, like removes wastes, supplies the body with oxygen, supplies the body with nutrients, removes carbon dioxide and x marks indicating which system performs each function.)

Explanation:

Step1: Recall system functions

• Circulatory System: Transports oxygen (via blood with oxygen from respiratory system), nutrients (from digestive system), and removes wastes. Also helps maintain homeostasis.
• Respiratory System: Takes in oxygen, releases carbon dioxide, helps with homeostasis (gas exchange).
• Digestive System: Breaks down food into nutrients, absorbs them, helps maintain homeostasis (nutrient supply), and does not supply oxygen.

Step2: Analyze Option A

• "Maintains homeostasis": Circulatory (transports to maintain balance), Respiratory (gas exchange balance), Digestive (nutrient balance) – but A marks Circulatory for "maintains" (wrong, all three do), "Supplies O₂": Circulatory (no, it transports O₂ brought by Respiratory), Respiratory (yes, it takes in O₂) – A marks Circulatory, wrong. "Supplies nutrients": Respiratory (no, it’s Digestive and Circulatory transports), A marks Respiratory, wrong.

Step3: Analyze Option B

• "Maintains homeostasis": Digestive (yes, nutrient balance), Circulatory (yes, transport balance), Respiratory (yes, gas balance) – B marks only Digestive, but let's check other functions.
• "Supplies the body with oxygen": Respiratory (takes in O₂) and Circulatory (transports O₂) – B marks both, correct (Respiratory gets O₂, Circulatory delivers it).
• "Supplies the body with nutrients": Digestive (breaks down, absorbs) and Circulatory (transports nutrients from Digestive) – B marks both, correct (Digestive provides nutrients, Circulatory transports them).

Other options (not fully visible, but B aligns with system functions: Circulatory transports O₂ (from Respiratory) and nutrients (from Digestive); Respiratory supplies O₂ (then Circulatory transports); Digestive supplies nutrients (then Circulatory transports), and all help maintain homeostasis. So B is correct.

Answer:

B. The table in Option B (with functions: Maintains homeostasis – Digestive marked; Supplies the body with oxygen – Circulatory and Respiratory marked; Supplies the body with nutrients – Circulatory and Digestive marked)