The following which is a correct sequence of levels in life's hierarchy, proceeding downward from an individual animal is nervous system, brain, nervous tissue, nerve cell and is denoted as option D.
What is Hierarchy of cells?
This is described as the biological levels of organization of living things in which the simplest is referred to as the cell while the most complex is referred to as organ system.
Cell ⇒ Tissue ⇒ Organ ⇒ System
In the example given below, the correct hierarchy from the complex to simplest is nervous system, brain(organ), nervous tissue, nerve cell which is therefore the reason why option D was chosen as the most appropriate choice.
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