An example of a hierarchy of structure in animals (from more to less complex) is as follows: *
circulatory system --> vein --> capillary --> organelle
heart cell -> circulatory system -> heart --> heart muscle tissue
circulatory system --> heart --> capillary --> epithelial cell
heart --> heart muscle --> vena cava --> artery

circulatory system --> heart --> capillary --> epithelial cell

Explanation:

from complex to least complex;

organism, organ system, organ, tissue, cell

hope this helps

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive