Final answer:
The living systems can be placed in order from smallest to largest based on hierarchical organization: hydrogen atom, water molecule, skin cell, liver, wolf pack, tropical rainforest, elephant, and planet Earth.
Step-by-step explanation:
The living systems can be placed in order from smallest to largest based on hierarchical organization as follows:
- Hydrogen atom: the smallest organizational unit of matter.
- Water molecule: made up of two hydrogen atoms and one oxygen atom.
- Skin cell: a basic structural and functional unit of the skin.
- Liver: an organ made up of millions of cells and responsible for various metabolic functions.
- Wolf pack: a group of wolves that live and hunt together.
- Tropical rainforest: a large ecosystem made up of diverse plant and animal species.
- Elephant: a large mammal belonging to the order Proboscidea.
- Planet Earth: the largest and most encompassing level of organization, representing the entire planet.