Most obvious and technically complicated feature of all living organism.

Options

A. Metabolism
B. Growth
C. Replication
D. Ability to sense their environment

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the most obvious and technically complicated feature of all living organisms.

2. **Understanding the Term**: The term "Consciousness" is introduced as the answer. It is important to understand what consciousness means in the context of living organisms.

3. **Define Consciousness**: Consciousness refers to the ability of an organism to respond to changes in its environment. This includes awareness and the capacity to react to stimuli.

4. **Differentiate from Other Features**: The question also mentions other biological processes such as metabolism. While metabolism is essential for life, it is not considered as complex or obvious as consciousness.

5. **Conclude the Answer**: Based on the understanding of consciousness and its significance in living organisms, we conclude that the most obvious and technically complicated feature of all living organisms is indeed consciousness.

---