Multiple Choice
Which of the following correctly lists the levels of organization from least complex to most complex?
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1. Introduction to Anatomy & Physiology
Levels of Organization
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How does the human body illustrate levels of organization?
A
The human body is organized from cells to tissues, organs, organ systems, and finally the organism.
B
The human body is organized from tissues to cells, then to organs and organ systems.
C
The human body is organized from organ systems to organs, then to tissues and cells.
D
The human body is organized from atoms to molecules, then directly to organ systems.
Verified step by step guidance1
Begin by understanding the concept of biological organization, which is a hierarchy of complex biological structures and systems that define life using a reductionistic approach.
Recognize that the smallest unit of life is the cell, which is the basic building block of all living organisms.
Identify that cells group together to form tissues, which are collections of similar cells that perform a specific function.
Understand that tissues combine to form organs, which are structures that perform specific functions within the body.
Realize that organs work together as part of organ systems, which collaborate to maintain the overall function and homeostasis of the organism, culminating in the complete organism itself.
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