Answered

Which lists three living units of the human body in order from the simplest to the most complex level of organization?

A. red blood cell → circulatory system → blood
B. nervous system → red blood cell → nerves
C. heart tissue → brain → circulatory system
D. bone tissue → skeletal system → bone



Answer :

GinnyAnswer

Final answer:

Cells are the basic building blocks of the human body, which combine to form tissues, organs, and organ systems.


Explanation:

Cells are the simplest living unit of the human body, followed by tissues that are formed by a group of cells with similar functions. These tissues combine to form organs, which then work together in organ systems like the skeletal and muscular systems.


Learn more about Levels of organization in the human body here:

https://brainly.com/question/14945746


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