Prions, infectious protein particles, can induce conformational changes in normal proteins, leading to diseases like Creutzfeldt-Jakob disease. While exhibiting self-propagation, prions lack genetic material. Do prions challenge the conventional definition of living organisms, and why?

All living organisms maintain a constant internal environment despite external changes. This process is known as:

In plants growth occur by … throughout their life span.

Choose an appropriate option to complete the given NCERT statement

A defining property or characteristic of living organisms is

Metabolism can be best defined as

Growth in living organism is from

Read the following features and select the correct option from the options given below with respect living beings I. They reproduce II. They metabolise

III. They have cellular organization IV. They have ability to respond to stimuli

Which of the following is a defining feature of all living organisms

Among the following listed features, which is not a unique feature of living organisms?

Metabolic reaction take place

In majority of higher animals and plants reproduction and growth are