Fill in the blanks.

Options

A. Pneumonia is an example of ………………. Disease.
B. Many skin diseases are caused by…………….
C. Antibiotics commonly block biochemical pathways important for the growth of…………….
D. Living organisms carrying the infecting agents ts from one person to another are called………………

Explanation

### Step-by-Step Text Solution:

1. **Pneumonia is an example of a** __________ **disease.**
- **Answer:** Infectious
- Explanation: Pneumonia is a disease that can be transmitted from one person to another, making it an infectious disease.

2. **Man's skin diseases are caused by** __________.
- **Answer:** Fungi
- Explanation: Skin diseases in humans are primarily caused by fungal infections.

3. **Antibiotics commonly block biochemical pathways important for the growth of** __________.
- **Answer:** Bacteria
- Explanation: Antibiotics are substances that inhibit the growth of bacteria, thereby treating bacterial infections.

4. **Leaving organism carrying the infecting agents from one person to another are called** __________.
- **Answer:** Vectors
- Explanation: Vectors are organisms that transmit pathogens from an infected individual to a healthy individual.