The Eight Life ProcessesThe Eight Life Processes

The Eight Life ProcessesThe Eight Life Processes

All organisms carry out the All organisms carry out the eight life processes.eight life processes.

An Organism = Any Living An Organism = Any Living ThingThing

Biotic Vs. AbioticBiotic Vs. Abiotic

Biotic vs. AbioticBiotic vs. Abiotic

Organisms that are dead were still living at one time. Dead does not equal abiotic!

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

Ingestion (food getting)Ingestion (food getting) All organisms produce or take All organisms produce or take

in food. in food. Organisms that make their own Organisms that make their own

food are food are producers. . Organisms that eat other Organisms that eat other

organisms are known as organisms are known as consumers..

IngestionIngestion Plants produce Plants produce

their own foodtheir own food

Through the process known as

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

RespirationRespiration All organisms must obtain energy from the All organisms must obtain energy from the

food they eat. food they eat. Respiration is the process by which Respiration is the process by which

organisms obtain energy from their food. organisms obtain energy from their food. Part of this process involves breathing, but Part of this process involves breathing, but

this is only one small part. The oxygen we this is only one small part. The oxygen we breathe in, for example, is used to obtain breathe in, for example, is used to obtain energy from the food that we eat.energy from the food that we eat.

RespirationRespiration

CellsCells

The air we breathe combines with the food we eat to produce energy, carbon dioxide, and water.

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

Independent MovementIndependent Movement All organisms must be able to move All organisms must be able to move

under their own power. under their own power. This movement may be interior (inside This movement may be interior (inside

the organism) or exterior (outside the the organism) or exterior (outside the organism). organism).

Trees swaying in the wind, for example, Trees swaying in the wind, for example, would not be moving under their own would not be moving under their own power. However, these organisms do power. However, these organisms do have interior movement.have interior movement.

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

SecretionSecretion All organisms produce useful fluids All organisms produce useful fluids

needed for body activities. These needed for body activities. These fluids are called secretions. Examples fluids are called secretions. Examples of useful body fluids include:of useful body fluids include:

1.1. SalivaSaliva

2.2. PerspirationPerspiration

3.3. Mucous Mucous

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

ExcretionExcretion

All organisms must rid All organisms must rid their bodies of waste. This their bodies of waste. This is the process of excretion.is the process of excretion.

ExcretionExcretion

Not all organisms have solid waste. Some organisms have waste only in the form of gases.

Excretion in PlantsExcretion in PlantsIn plants,

waste gases are removed

from the plant through cells

called Stomata. Gases are

also absorbed through these

cells.

Reproduction

GrowthAnd

Repair

Stimulus Response andAdaptation

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

Response and AdaptationResponse and Adaptation

All organisms respond to All organisms respond to stimuli and adapt over long stimuli and adapt over long periods of time in order for periods of time in order for

their species to survive.their species to survive.

Response and AdaptationResponse and Adaptation

Stimulus Responses are Stimulus Responses are short term changes.short term changes.

Adaptations take place over Adaptations take place over long periods of time.long periods of time.

Response and AdaptationResponse and Adaptation

A stimulus is something A stimulus is something that causes a response.that causes a response.

Cold=StimulusCold=StimulusShivering=ResponseShivering=Response

Response and AdaptationResponse and Adaptation

What other examples of What other examples of stimuli and responses can stimuli and responses can

you think of?you think of?List Five on your notes!List Five on your notes!

Response and AdaptationResponse and Adaptation

Adaptations happen to Adaptations happen to organisms over long, long organisms over long, long

periods of time. Humans, for periods of time. Humans, for example, have gotten taller example, have gotten taller over the last few thousand over the last few thousand

years. This is an adaptation.years. This is an adaptation.

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

Growth and RepairGrowth and Repair All organisms grow All organisms grow

and repair injuries to and repair injuries to themselves. The themselves. The

more complex more complex thethe organism, the less organism, the less their ability is to their ability is to repair injuries.repair injuries.

Planaria

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes

ReproductionReproduction All organisms reproduce in order to further All organisms reproduce in order to further

the species. There are two types of the species. There are two types of reproduction. They are:reproduction. They are:

1. Sexual Reproduction1. Sexual Reproduction

2. Asexual Reproduction2. Asexual Reproduction

Sexual Reproduction—Two ParentsAsexual Reproduction—One Parent

Asexual ReproductionAsexual Reproduction BuddingBudding

A new organism grows from the side of the parent until it is big enough to live on its own.

HydraHydra

Asexual ReproductionAsexual Reproduction

In Single-Celled Organisms

Sexual ReproductionSexual Reproduction Organisms Organisms that reproduce that reproduce

sexually sexually require two require two

parents.parents.

Sexual ReproductionSexual Reproduction Both plants and animals Both plants and animals

reproduce sexually.reproduce sexually.Bees carry the male pollen from one plant to the pistil of another plant where the eggs of that plant are fertilized.

Reproduction

GrowthAnd

Repair

Response andAdaptation to

Stimuli

Excretion

Secretion

IndependentMovement

Respiration

Ingestion

The Eight Life Processes