The system of providing names with certain rules is called

What is identification and what is its aim?

Non-living objects:
$(1)$ Grow from the external surface by collecting substances on it.
$(2)$ Grow from the internal surface like living organisms.
$(3)$ Do not grow at all.
Which of the following options is correct?

Statement $X$: To define a living organism,focus is placed on the specific characteristics of living beings.
Statement $Y$: Reproduction,growth,development,consciousness towards the environment,adaptation,and death are the unique characteristics of living organisms.

How do living organisms adapt to their environment?

Why are living organisms classified?