Answer :
The systems in humans that perform similar activities to the given functions are the respiratory, excretory, and digestive systems. Here's why:
1. Respiratory System: The respiratory system in humans is responsible for exchanging gases, such as taking in oxygen (Oâ‚‚) and releasing carbon dioxide (COâ‚‚) through breathing. This aligns with the functions of Oâ‚‚ and COâ‚‚ mentioned in the question.
2. Excretory System: The excretory system in humans eliminates nitrogenous wastes from the body, similar to what is indicated in the given functions. It removes waste products like urea and other nitrogenous compounds through the urine produced by the kidneys.
3. Digestive System: The digestive system processes food and extracts nutrients while eliminating solid waste. It is involved in breaking down food into smaller molecules that can be absorbed by the body, which is analogous to the food function mentioned in the question.
Therefore, the correct answer is:
(3) respiratory, excretory, and digestive systems.
1. Respiratory System: The respiratory system in humans is responsible for exchanging gases, such as taking in oxygen (Oâ‚‚) and releasing carbon dioxide (COâ‚‚) through breathing. This aligns with the functions of Oâ‚‚ and COâ‚‚ mentioned in the question.
2. Excretory System: The excretory system in humans eliminates nitrogenous wastes from the body, similar to what is indicated in the given functions. It removes waste products like urea and other nitrogenous compounds through the urine produced by the kidneys.
3. Digestive System: The digestive system processes food and extracts nutrients while eliminating solid waste. It is involved in breaking down food into smaller molecules that can be absorbed by the body, which is analogous to the food function mentioned in the question.
Therefore, the correct answer is:
(3) respiratory, excretory, and digestive systems.
