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Bio 201
characteristics of ALL life
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Living things are made up of
organic molecules
that contain
nucleic acids
,
proteins
,
carbohydrates
, and
lipids.
Living things
are composed of
cells.
The smallest unit of
matter
that
can't
be
broken down
any further is the
atom.
Living things grow
and
reproduce.
Living things use
energy
and
raw materials.
Living things
respond
to their
environment.
Living things maintain
homeostasis.
Populations
of living things have
adaptive traits
and
evolve.
Atom
is a
unit
of matter that
cannot
be further
broken
down.
A
molecule
is the
chemical components
of
cells.
An
organelle
is a
component
within the
cell
that carries out
specific functions.
A
cell
is the
smallest unit
of
life.
A
tissue
is a group of similar
cells
that perform the same
function.
An
organ
is a
structure
with
two
or
more tissues
working together to perform a
function.
Organ systems
are at least
two organs
working together to perform a
function.
All living things maintain
homeostasis
, which is a condition of
equilibrium
within any
biological
system.
All living things
grow
and
reproduce
through
sexual
reproduction
asexual
reproduction
Negative feedback
is a
change
in a
variable
that
triggers
a
control mechanism
to
counteract
further
change
in the
same direction.
Catabolism
is the breaking down of
complex molecules
into more
simple
ones.
Anabolism
is the assembly of
simple
molecules into more
complex
molecules.
Populations
of living things have
adaptive traits
and
evolve.
All
living things respond
to their
environment
by
detecting stimuli
and then
reacting.
Humans belong to the kingdom
Animals
- Domain
Eukarya
All living things use
energy
and
raw materials
by
taking up
and
metabolizing compounds
from their
environment.
Metabolism
is the sum of all
chemical reactions
within
living cells.
Positive feedback
is a
change
in a
variable
that
triggers
a
control mechanism
to
amplify
rather than
reverse
the
change.
An
individual
is a
single organism.
A
population
is all the
individuals
of the
same
species
in an
area.
A
community
is
all
the
species
in an
ecosystem
that can
interact.
An
ecosystem
is a
community
and its
physical environment.
The
biosphere
is the
part
of the
earth
that
supports life.
sexual
reproduction (
sperm
and
egg
)
Asexual
reproduction (
splitting
of the
cell
)
atom
is a
unit
of
matter
that
cannot
be further
broken
down
molecule
is the
chemical components
of
cells
organelle
is a
component
within the
cell
that carries out
specific functions
cell
is the
smallest unit
of
life
Tissue
is a group of
similar cells
that
perform
the
same
function
an
organ
is a
structure
with
two
or
more tissues
working together to perform a
function
organ system
means
at
least
two organs
working together to perform a
function