A living organism is unexceptionally differentiated from a non-living structure on the basis of

Options

A. reproduction
B. growth and movement
C. interaction with environment
D. responsiveness.

Answer

To determine the characteristic that differentiates living organisms from non-living structures, we can analyze the options provided:

1. **Reproduction**: While reproduction is a common characteristic of living organisms, not all living organisms can reproduce (e.g., infertile organisms). Therefore, this characteristic does not exclusively define living organisms.

2. **Growth and Movement**: Both living and non-living entities can exhibit growth and movement under certain conditions. For instance, non-living objects can grow through external forces (like breaking into pieces) and can move when acted upon. Thus, this is not a definitive characteristic.

3. **Interaction with Environment**: Both living and non-living things interact with their environment. For example, a plastic bottle can degrade when exposed to sunlight, indicating interaction. Hence, this characteristic does not exclusively apply to living organisms.

4. **Responsiveness**: This characteristic is unique to living organisms. Living organisms have sense organs that allow them to respond to stimuli in their environment. Non-living things do not have the capability to respond to stimuli; they remain unaffected by external changes.

Based on this analysis, the characteristic that unexceptionally differentiates living organisms from non-living structures is **responsiveness**.