Which of the following levels in the hierarchy of biology organization includes all of the other levels in the list?

Options

A. Cells
B. Biological molecules
C. Atoms
D. Tissues

Answer

To solve the question of which level in the hierarchy of biological organization includes all of the other levels in the list, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Levels of Organization**: The options given are:
- 1. Cells
- 2. Biological Molecules
- 3. Atoms
- 4. Tissues

2. **Understand the Hierarchy**: The biological organization follows a specific hierarchy from the smallest to the largest:
- Atoms are the basic units of matter.
- Biological molecules (or biomolecules) are formed from atoms. For example, carbohydrates are made up of carbon, hydrogen, and oxygen atoms.
- Cells are the basic units of life and are composed of various biological molecules.
- Tissues are groups of similar cells that work together to perform a specific function.

3. **Determine Which Level Includes All Others**:
- Atoms are the smallest unit and do not include any other level.
- Biological molecules are made up of atoms but do not include cells or tissues.
- Cells are made up of biological molecules but do not include tissues.
- Tissues are composed of cells, which in turn are made up of biological molecules and atoms.

4. **Conclusion**: Since tissues are the highest level in this hierarchy and include cells, biological molecules, and atoms, the correct answer to the question is **Tissues (Option 4)**.

### Final Answer:
The level in the hierarchy of biological organization that includes all of the other levels in the list is **Tissues (Option 4)**.

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