To determine which two items are in the wrong order from smallest to largest, we need to consider the biological hierarchy represented by these definitions:
- Molecule - A cluster of atoms held together by chemical bonds.
- Organelle - Parts inside the cell that help the cell function.
- Cell - Tiny microorganisms that make up tissues.
- Tissue - Parts of an organ with specific jobs.
- Organ - Parts of the organ system that work together.
- Organ System - All the systems in the organism.
- Organism - A single being in a population.
The correct order, from smallest to largest, should be:
- Molecule
- Organelle
- Cell
- Tissue
- Organ
- Organ System
- Organism
Now, let's look at the options:
- 5 (Organelle) should come before 3 (Tissue) since organelles are found in cells, which make up tissues.
- 4 (Organ) should be after 3 (Tissue), and the same applies to 2 (Organ System) which is larger than 4 (Organ).
The two items that are out of order are:
- 5 (Organelle) is indeed in the correct position as smaller than 3 (Tissue).
- However, 2 (Organ System) and 3 (Tissue) are also in the wrong order since the Organ System should come after Organs and Tissues.
The answer is d (2 & 3), where 2 (Organ System) is larger than 3 (Tissue) and they are misplaced relative to the hierarchy. Thus, d is correct since Organ System should come after Organ, not in between Tissue and Organ.