Levels of Organization — hierarchy?
From molecules to organism, organized in increasing complexity.
Levels of Organization — sequence?
Chemical, cellular, tissue, organ, system, organism
Body Systems — main function?
Coordinate to maintain homeostasis and support life functions.
Cell — role?
Basic functional unit of life
Homeostasis — mechanism?
Regulates internal environment via feedback loops.
Tissue — definition?
Group of similar cells working together
Organ — composition?
Multiple tissues working together
Organ system — function?
Group of organs performing a complex task
Organism — level?
Entire human body
Homeostasis — role?
Maintains a stable internal environment
Test your knowledge with 9 questions on Human Body Systems and Organization.
1. What is the 'organ level' in the levels of organization?
2. What is the simplest level of body organization that involves atoms and molecules?
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