Question

(a) What criteria can be used to decide whether something is alive?
(b) What is meant by life processes? Name the basic life processes common to all living organisms which are essential for maintaining life.

Answer 1

Explanation:

Any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or not. However, a living organism can also have movements, which are not visible to the naked eye.

The basic essential activities performed by an organism to withstand its life are called as life processes. These include nutrition, respiration, circulation, excretion and reproduction. Organisms obtain energy from food to perform these life processes which are essential for survival.

Answer 2

Answer:

The process occuring in living organisms by which they remain alive are called life process.

• Respiration

• Nutrition

Explanation:

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