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The Living and the Nonliving
As you read this chapter, you may be sitting in your classroom. You have learnt enough
about nonliving objects and living beings to know that you your classmates. your teacher
the spider on the wall and the tree outside are living. And that the chair, the table, this
book. your pen and pencil are nonliving. Still, let us discuss what the living and poniiving
have in common, and what differentiates them.
The living as well as the nonliving are made of matter. Anything that is made of matter
has mass and occupies space. Thus, everything around us, whether living or nonliving has
mass and occupies space. The smallest particles of matter are molecules. These particles
constitule living beings and nonliving things. But that is where the similarity between the
living and nonliving ends. You can say that the structural unit of water is a molecule of
water. A cup of water is simply billions of molecules of water. But you cannot say this of a
iving organism. Though a living being is also made of molecules. Just those molecules po
ogether do not make an organism. The most basic unit, or structural unit of an organise
s the cell. Every living organism starts from a cell, which divides and redivides to give me
o the organism.
WHAT CHARACTERISES A LIVING BEING
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what is this can't read my eye is weak sorry
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