We can't classify an organism as living just by looking at it but there are some parameters that are taken into consideration. Such as if a body or organism can perform locomotion, excretion, and photosynthesis then we can say that a body is living! There are two types of features: 1. Characteristic feature: Characters or features which are common in both non-living and living but aren't a specific feature that we can call an organism living. 2. Defining features: Features that can be seen in only living. They are only seen in the living organism. Growth, reproduction, ability to sense the environment and mount a suitable response come to our mind immediately as unique features of living organisms. Let's check out the defining and characteristic features of living organisms: 1. Growth: All living organisms grow. An increase in mass and an increase in the number of individuals are twin characteristics of growth! Intrinsic growth is defining feature of living beings. In...