An organ system is a group of organs that work together to perform a certain function in an organism’s body. Most animals and plants have organs, which are self-contained groups of tissues such as the heart that work together to perform one function.
The 12 Animal Organ Systems and Their Functions
Human body systems: Overview, anatomy, functions
Respiratory system - Wikipedia
Lymphatic system: Definition, anatomy, function, and diseases
Organ (biology) - Organ Many of the internal organs of the human body Details System Organ systems - Studocu
organ - Students, Britannica Kids
Integumentary System: What It Is, Function & Organs
Organ (biology) - Wikipedia
Body Systems - The Definitive Guide
What is the Nervous System?
Organs and Organ System - Overview, Examples, and FAQs
Organ System Definition and Example I Biology