Body System Organization
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Objective
I can describe how cells, tissues, organs, and organ systems work together in the human body.
Part 1 of 4
Warm-up video
Khan Academy · 4:14Vetted channel
We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The human body has a hierarchical organization, meaning it's made up of nested layers, including cells, tissues, organs, and organ systems.
- 2
Tissues are collections of similar, specialized cells that work together, while organs are structures made up of multiple tissue types.
- 3
An organ system is a group of organs that work together to carry out complex functions, such as the respiratory system, which includes the lungs, trachea, nose, and diaphragm.
Part 3 of 4
Practice
10 questions
What are the four levels of hierarchical organization in the human body, from simplest to most complex?
Which of the following is the most basic unit of life and the starting point of the body's hierarchical organization?
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe how cells, tissues, organs, and organ systems are related in the human body's hierarchical organization. Provide an example using the respiratory system.”
Sample answer included in the free materials
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