Which of the following sequences of organisation is likely to be observed in a multicellular organism, going from the smallest to the largest ?

Options

A. Cell, organ, tissue, organism
B. Cell, organ, system, tissue
C. Cell, tissue, system, organism
D. Organism, system, organ, tissue

Explanation

To determine the correct sequence of organization in a multicellular organism from the smallest to the largest, we need to understand the hierarchical structure of biological organization. Here’s the step-by-step solution:

### Step 1: Identify the smallest unit of life
- The smallest unit of life is the **cell**. Cells are the basic building blocks of all living organisms.

### Step 2: Grouping of cells
- When similar cells come together, they form **tissues**. Tissues are groups of cells that work together to perform a specific function.

### Step 3: Formation of organs
- Different types of tissues combine to form an **organ**. Organs are structures that perform specific functions within an organism.

### Step 4: Organ systems
- Several organs work together to form an **organ system**. Organ systems are groups of organs that collaborate to perform complex functions necessary for life.

### Step 5: Complete organism
- Finally, all the organ systems together make up a **whole organism**. An organism is a living entity that can function independently.

### Conclusion
- Therefore, the correct sequence of organization from the smallest to the largest in a multicellular organism is:
**Cell → Tissue → Organ System → Organism**.