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A basic introduction to the field of biology, defining its scope and key characteristics of life. It explores the fundamental differences between living and non-living things, highlighting the importance of cellular structure and the role of dna in growth and reproduction. The document also introduces the concept of homeostasis and the evolutionary history of organisms, laying the groundwork for further exploration of biological concepts.
Typology: Lecture notes
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.
:
of space and an
volcano is not
but science because
are non
,
is
because
: medicinal
, mushrooms ,
, meerkats , sunflower ,
that is stuck in stomach that causes diarrhed.
have a
.
·
a few chemical elements (out of 100) are
in
abundance in
.
·
our
are
made up of
elements
, carbon
,
water
to create molecules of life. If
are not made up of the
elements ,
are non living .
of life
: Proteins
, Nucleic Acids
in both
.
from the environment.
·
All
from
molecules and
need to survive.
:
animals eat food
animals must
are
of cells
·
is
,
:
~
~
All cells zome
from
cells
division.
: Unicellular made from one cell ,
many .
·
,
.
Living things grow
reproduce
·
ability
is
by
the genetic
.
·
They make a
of themselves.
·
Nonliving things can
but they
copies
of themselves.
⑧
LivingThings
·
respond
·
relatively
·
evolving
adapting .
to every living thing all the
characteristics shared by living organisms
Organized from the atom to the
4 . Respond
Reproduce
evolutionary history through
which organisms change
Classifications of Organisms
:
Living Things
are grouped according
Five-kingdom
system
,
and
multicellular , eukaryotic
,
-presence or absence of a nucleus
Number of cells Fungi multicellular , eukaryotic , decomposers (tungi ,
mushrooms)
Type
, eukaryotic , photosynthetic
Six-kingdom
Animalia Multicellular , eukaryotic ,
, invertebrate/verte
they
,
the two
of monerans
Bacteria unicellular prokaryotic organisms
prokaryotic organisms
most live in extreme environments
·
largest
addresses two fundamentally
of
MAIN
Encompasses Kingdoms all the kingdom
in the
domains .
Bacteria prokaryotes Prokaryotic
possess
prokaryotes a nucleus
Eukarya eukaryotes
Eukaryotic
a nucleus