A cell is to a tissue as an atom is to a:

• A. organelle
• B. organ
• C. organism
• D. molecule

Answer: (D)

Verified step by step guidance

1. Step 1: Begin by understanding the analogy presented in the question. The analogy compares the relationship between a cell and a tissue to the relationship between an atom and another entity.
2. Step 2: Recall that a cell is the smallest structural and functional unit of life, and tissues are composed of groups of cells working together to perform a specific function.
3. Step 3: Similarly, an atom is the smallest unit of matter that retains the properties of an element, and molecules are composed of two or more atoms bonded together.
4. Step 4: Analyze the options provided: organelle, organ, organism, and molecule. Consider which entity is formed by the combination of atoms, just as tissues are formed by the combination of cells.
5. Step 5: Conclude that the correct answer is 'molecule,' as molecules are made up of atoms, analogous to how tissues are made up of cells.