Refer to the given terms.
(i) RBC (ii) WBC (iii) Blood (iv) Muscle (v)Skin (vi) Brain (vii) Heart (viii) Lung (ix) Sperm (x) Kidney
Select the option which correctly classifies the given terms into cell, tissue and organ.

Answer

To classify the given terms into cells, tissues, and organs, we can follow these steps:

### Step 1: Identify Cells
- **RBC (Red Blood Cells)**: These are the cells responsible for carrying oxygen in the blood.
- **WBC (White Blood Cells)**: These are cells that are part of the immune system and help fight infections.
- **Sperm**: This is a male gamete and is also classified as a cell.

**Cells identified**:
1. RBC (i)
2. WBC (ii)
3. Sperm (ix)

### Step 2: Identify Tissues
- **Blood**: This is a type of connective tissue that circulates throughout the body.
- **Muscle**: This is a type of tissue that is responsible for movement.

**Tissues identified**:
1. Blood (iii)
2. Muscle (iv)

### Step 3: Identify Organs
- **Skin**: This is the largest organ of the body that protects internal structures.
- **Brain**: This organ is responsible for processing sensory information and controlling bodily functions.
- **Heart**: This organ pumps blood throughout the body.
- **Lung**: This organ is responsible for gas exchange (breathing).
- **Kidney**: This organ filters blood and produces urine.

**Organs identified**:
1. Skin (v)
2. Brain (vi)
3. Heart (vii)
4. Lung (viii)
5. Kidney (x)

### Summary of Classification
- **Cells**: RBC (i), WBC (ii), Sperm (ix)
- **Tissues**: Blood (iii), Muscle (iv)
- **Organs**: Skin (v), Brain (vi), Heart (vii), Lung (viii), Kidney (x)

### Final Classification
- **Cells**: 1 (RBC), 2 (WBC), 9 (Sperm)
- **Tissues**: 3 (Blood), 4 (Muscle)
- **Organs**: 5 (Skin), 6 (Brain), 7 (Heart), 8 (Lung), 10 (Kidney)