REPRODUCTION--
the process by which living things produce new living things of the
same kind
there are 2 types
1) asexual reproduction--involves one parent and the offspring
are identical to the parent
2) sexual reproduction--involves two parents and the offspring
is a combination of both parents
EXCRETION--
the process by which living things remove waste products produced by cell
activities
GROWTH--
the process by which living things increase in size or cell number
NUTRITION--
the process by which living things take in materials from its environment
for growth and repair; there are 2 types
1) autotrophic nutrition--where a living thing can make its own
food
2) heterotrophic nutrition--where a living thing must ingest (take
in) its food
TRANSPORT--
the process by which usable materials are taken into the living thing
(ABSORPTION) and distributed throughout the living thing (CIRCULATION)
SYNTHESIS--
the process by which smaller, simple substances are combined chemically
to form larger, more complex substances
If a living thing has all 8 off these life functions, it is called an
ORGANISM!
When we refer to all of the life functions of an organism, we are referring to its METABOLISM--the total of all the life functions required to sustain life (to stay alive)
R
+ R + R + E + G + N + T + S =
METABOLISM
An organism's external (outside) environment is always changing. By keeping the control and regulation of its metabolic activities, an organism can maintain a stable internal (inside) environment. This is called HOMEOSTASIS.
HOMEOSTASIS--
the process by which an organism's metabolic activities are in a state
of balance
ex. body temp, blood sugar levels
The
8 Life
Functions
