'Organ system circulatory system' presentation slideshows

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The human body is complex.

You can think of the body as having five levels of organization:. organ systems, and the whole organism itself. cells, tissues,. organs,. The different systems of the human body work together to maintain homeostasis. 1. 5. Cells (cardiac muscle cells). Organism (human). 2. 3. 4.

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the BIG idea

the BIG idea. NEW CHAPTER. Systems, Support, and Movement. The human body is made up of systems that work together to perform necessary functions. 17.1. The human body is complex. 17.2. The skeletal system provides support and protection. 17.3. The muscular system makes movement possible.

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