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Characteristics of Life
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Cellular Level: membrane. Body level: skin.
-keep insides in and outsides out-
Maintaining Boundaries
within
body:
blood
,
food
whole
body:
locomotion
Movement
The ability to
respond
to the
environment
make
adjustments
to a
changing
environment.
Responsiveness
Break down
of
food
/
absorption
of
food
to be
used
for
energy
Assimilation of Nutrients (digestion)
All
chemical reactions
of the body's
cells
; provide
energy
for
life
Metabolism
Breakdown
reactions AB -> A+B;
release
energy
Catabolims
Building-Up
reactions A+B -> AB;
consumes
energy
Anabolism
Removal
of
waste
products produced by metabolism.
ex: urinary, digestive
Excretion
Formation of
new cells
for
growth
,
repair
,
replacement
(cellular)
production
of
new
individual (organism)
Reproduction
Increase
in
size
of
body part
or
organism
can increase size of
existing cells
or
number of cells
Growth
Author
abby32892
ID
61657
Card Set
Characteristics of Life
Description
Living organisms share unique characteristics not seen in non-living things.
Updated
2011-01-24T20:05:14Z
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