Question

practice it!
which of the following describes an organ inside a human body?
○ an organ has its own function, and is a part of a larger system called an organ system.
○ organs and organ systems have separate roles and do not rely on each other.
○ an organ is any part of the circulatory system, including the lungs.
○ an organ system is a minor part of what allows an organ to function.

Explanation:

• The first option correctly defines an organ: each organ has a specialized individual function, and organs work together as part of a larger organ system (e.g., the heart is an organ with the function of pumping blood, and it is part of the circulatory organ system).
• The second option is incorrect because organs/organ systems are interdependent, not independent.
• The third option is incorrect because lungs are part of the respiratory system, not the circulatory system.
• The fourth option is incorrect because organ systems are major groups of organs that work together to perform body functions, not minor parts of an organ.

Answer:

A. An organ has its own function, and is a part of a larger system called an organ system.