Which of the following is a correct sequence?
(i) Cell (ii) Tissue (iii) Organ system (iv) Organ (v) Organism

Options

A. (i) (iv) (iii) (v)
B. (i) (iii) (iv) (ii) (v)
C. (i) (v) (iv) (iii) (ii)
D. (i) (v) (iii) (ii) (iv)

Answer

To determine the correct sequence of biological organization from the options given, we can follow these steps:

1. **Identify the Basic Unit**: The most basic unit of life is the cell. Cells are the fundamental building blocks of all living organisms.

2. **Formation of Tissues**: When similar cells group together, they form a tissue. Tissues are collections of cells that work together to perform a specific function.

3. **Formation of Organs**: Different types of tissues combine to form an organ. An organ is a structure that performs a specific function within an organism.

4. **Formation of Organ Systems**: Several organs that work together to perform complex functions form an organ system. Organ systems are groups of organs that collaborate to carry out a particular task.

5. **Formation of Organism**: Finally, when all the organ systems come together, they form a complete organism. An organism is a living entity that can function independently.

Now, putting this information together, the correct sequence is:
- (i) Cell
- (ii) Tissue
- (iv) Organ
- (iii) Organ system
- (v) Organism

Thus, the correct order is: **Cell → Tissue → Organ → Organ System → Organism**.

The correct answer is: **1, 2, 4, 3, 5**.