Question

Which two of these are in the wrong order (from smallest to largest)?

1. Organism - A single being in a population.
2. Organ system - All the systems in the organism.
3. Tissue - Parts of an Organ with specific jobs.
4. Organ - Parts of the organ system that work together.
5. Organelle - parts inside the cell the help the cell function.
6. Cell - tiny microorganisms that make up tissues.
7. Molecule - A cluster of atoms held together by chemical bonds.

a
none
b
5 & 3
c
5 & 4
d
2 & 3

Answer 1

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:

1. **Molecule** - A cluster of atoms held together by chemical bonds.
2. **Organelle** - Parts inside the cell that help the cell function.
3. **Cell** - Tiny microorganisms that make up tissues.
4. **Tissue** - Parts of an organ with specific jobs.
5. **Organ** - Parts of the organ system that work together.
6. **Organ System** - All the systems in the organism.
7. **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.