A living system has a continuous inflow of chemical energy in the form of food and out flow in the form of removal of waste. Such a system is called

Options

A. Open system
B. Closed system
C. Steady state
D. None of these

Answer

To solve the question regarding the type of living system described, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question states that a living system has a continuous inflow of chemical energy in the form of food and an outflow in the form of waste removal. We need to identify what type of system this is.

2. **Identifying System Types**: We have three types of systems to consider:
- Open System
- Closed System
- Steady State

3. **Defining Open System**: An open system is one that exchanges both energy and matter with its surroundings. In the context of living organisms, they take in food (chemical energy) and release waste, indicating a continuous exchange with the environment.

4. **Defining Closed System**: A closed system only exchanges energy with the environment but does not exchange matter. In this case, while energy may be exchanged, the removal of waste indicates that matter is also being exchanged, which does not fit this definition.

5. **Defining Steady State**: A steady state system does not exchange energy or matter with its surroundings. It remains in equilibrium and does not take in food or remove waste, which contradicts the description given in the question.

6. **Conclusion**: Since the living system described in the question continuously takes in food (chemical energy) and removes waste, it fits the definition of an **Open System**. Therefore, the correct answer is **Open System**.

### Final Answer:
The system is called an **Open System**.