1-3 Studying Life
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1-3 Studying Life
Characteristics of Living Things
What are some characteristics of living
things?
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1-3 Studying Life
Characteristics of Living Things
Characteristics of Living Things
No single characteristic is enough to describe
a living thing.
Some nonliving things share one or more traits
with living things.
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1-3 Studying Life
Characteristics of Living Things
Living things share the following characteristics:
• maintain a stable internal environment
• Organized
• grow and develop
• Reproduce
• change over time
• based on a universal genetic code
• made up of units called cells
• obtain and use materials and energy
• respond to their environment
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Living things maintain a stable internal
environment.
Although conditions outside an organism
may change, conditions inside an organism
tend to remain constant.
This process is called homeostasis.
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1-3 Studying Life
Living things are organized in base units called cells.
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Living things grow and develop.
During an organism’s development, cells
differentiate, which means that the cells
look different from one another and
perform different functions.
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1-3 Studying Life
Living things reproduce.
In sexual reproduction, cells from two different
parents unite to form the first cell of the new
organism.
In asexual reproduction, a single parent produces
offspring that are identical to itself.
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Characteristics of Living Things
All living things have special characteristics that help
them survive. Over many generations these
adaptations can lead to changes in a species.
Taken as a group, livings things change over time.
Over many generations, groups of organisms
typically evolve.
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Characteristics of Living Things
Living things share a universal genetic code.
Organisms store the information they need
to live, grow, and reproduce in a genetic
code in a molecule called DNA.
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Characteristics of Living Things
Living things obtain materials and use energy.
The combination of chemical reactions through
which an organism builds up or breaks down
materials is called metabolism.
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Living things respond to their environment.
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1-3 Studying Life
How will you remember these 8 characteristics of
life?
HOG RACER
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