Question: Which organ system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment?
Answer: respiratory
Hypothesis: the respiratory system is used for exchanging oxygen and carbon dioxide between the body and the environment
Supporting facts: sent1: breathing is when animals convert oxygen into carbon dioxide sent2: oxygen can be found in air sent3: the nose is a part of the respiratory system sent4: internal organs are a part of the body sent5: the lungs are a part of the respiratory system sent6: a body system is a part of the body / an animal sent7: the respiratory system takes in oxygen from the air sent8: the respiratory system is a part of the body sent9: taking in and releasing means exchanging sent10: take in oxygen means get oxygen into the blood sent11: to breathe in means to absorb air sent12: lungs are used for breathing air by land animals / birds sent13: lungs are a part of the body sent14: organ system means body system sent15: air is a part of the environment sent16: aerobic respiration requires oxygen sent17: breathing in is when animals inhale air into their lungs sent18: blood absorbs oxygen in the lungs sent19: carbon dioxide can be found in the air sent20: blood is a vehicle for carrying oxygen from the lungs to the cells / rest of the body sent21: the body is a part of an organism sent22: the lungs are a part of the body of an animal used for breathing air sent23: to exchange things between something and something else means that something takes in one kind of thing from that something else and expels another kind of thing into that something else sent24: breathing out is when animals exhale / expel carbon dioxide from their lungs into the air sent25: all animals breathe
Reasoning: [BECAUSE] the respiratory system takes in oxygen from the air [AND] the respiratory system is a part of the body [INFER] int1: the respiratory system takes oxygen from the air into the body [BECAUSE] int1 [AND] air is a part of the environment [INFER] int2: the respiratory system takes oxygen from the environment into the body [BECAUSE] the lungs are a part of the body of an animal used for breathing air [AND] the lungs are a part of the respiratory system [INFER] int3: the respiratory system is used for breathing [BECAUSE] int3 [AND] breathing is when animals convert oxygen into carbon dioxide [INFER] int4: the respiratory system is used for converting oxygen into carbon dioxide by breathing [BECAUSE] int2 [AND] int4 [INFER] int5: the respiratory system takes oxygen from the environment into the body and converts it to carbon dioxide by breathing [BECAUSE] air is a part of the environment [AND] breathing out is when animals exhale / expel carbon dioxide from their lungs into the air [INFER] int6: breathing out is when animals expel carbon dioxide from their lungs into the environment [BECAUSE] int6 [AND] lungs are a part of the body [INFER] int7: breathing out is when animals expel carbon dioxide from their body into the environment [BECAUSE] int5 [AND] int7 [INFER] int8: the respiratory system takes oxygen from the environment into the body and expels carbon dioxide from the body into the environment by breathing [BECAUSE] int8 [AND] to exchange things between something and something else means that something takes in one kind of thing from that something else and expels another kind of thing into that something else [INFER] int9: the respiratory system is used for exchanging oxygen and carbon dioxide between the body and the environment