The Eight Life Processes
The Eight Life Processes
All organisms carry out the
eight life processes.
 An Organism = Any Living
Thing

Biotic Vs. Abiotic
Biotic vs. Abiotic
Organisms that are
dead were still living
at one time. Dead
does not equal abiotic!
Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Independent
Movement
Secretion
Excretion
Ingestion (food getting)
All organisms produce or take
in food.
 Organisms that make their own
food are producers.
 Organisms that eat other
organisms are known as
consumers.

Ingestion

Plants produce
their own food
Through the process
known as

Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Independent
Movement
Secretion
Excretion
Respiration



All organisms must obtain energy from the
food they eat.
Respiration is the process by which
organisms obtain energy from their food.
Part of this process involves breathing, but
this is only one small part. The oxygen we
breathe in, for example, is used to obtain
energy from the food that we eat.
Respiration
The air we
breathe
combines with
the food we eat
to produce
energy, carbon
dioxide, and
water.
Cells
Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Independent
Movement
Secretion
Excretion
Independent Movement



All organisms must be able to move
under their own power.
This movement may be interior (inside
the organism) or exterior (outside the
organism).
Trees swaying in the wind, for example,
would not be moving under their own
power. However, these organisms do
have interior movement.
Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Independent
Movement
Secretion
Excretion
Secretion

All organisms produce useful fluids
needed for body activities. These
fluids are called secretions.
Examples of useful body fluids
include:
1.
2.
3.
Saliva
Perspiration
Mucous
Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Excretion
Independent
Movement
Secretion
Excretion

All organisms must rid
their bodies of waste. This
is the process of excretion.
Excretion
Not all organisms
have solid waste.
Some organisms
have waste only
in the form of
gases.
Excretion in Plants
In plants,
waste gases
are removed
from the plant
through cells
called
Stomata.
Gases are
also absorbed
through these
cells.
Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Stimulus Response and
Adaptation
Excretion
Independent
Movement
Secretion
Response and Adaptation
All organisms respond to
stimuli and adapt over long
periods of time in order for
their species to survive.

Response and Adaptation
Stimulus Responses are
short term changes.
 Adaptations take place over
long periods of time.

Response and Adaptation

A stimulus is something
that causes a response.
 Cold=Stimulus
 Shivering=Response
Response and Adaptation
What other examples of
stimuli and responses can
you think of?
 List Five on your notes!

Response and Adaptation
Adaptations happen to
organisms over long, long
periods of time. Humans, for
example, have gotten taller
over the last few thousand
years. This is an adaptation.

Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Independent
Movement
Secretion
Excretion
Growth and Repair

All organisms grow
and repair injuries to
themselves. The
more complex the
organism, the less
their ability is to
repair injuries.
Planaria
Ingestion
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Respiration
Independent
Movement
Secretion
Excretion
Reproduction

All organisms reproduce in order to further
the species. There are two types of
reproduction. They are:
1. Sexual Reproduction
2. Asexual Reproduction
Sexual Reproduction—Two Parents
Asexual Reproduction—One Parent
Asexual Reproduction

Budding
A new
organism
grows from
the side of the
parent until it
is big enough
to live on its
own.
Hydra
Asexual Reproduction
In SingleCelled
Organisms
Sexual Reproduction
Organisms
that reproduce
sexually
require two
parents.

Sexual Reproduction

Both plants and animals
reproduce sexually.
Bees carry the
male pollen
from one plant
to the pistil of
another plant
where the eggs
of that plant
are fertilized.
Ingestion
Respiration
Reproduction
Growth
And
Repair
The Eight Life
Processes
Response and
Adaptation to
Stimuli
Independent
Movement
Secretion
Excretion