1) What is Life? An Introduction to Life Science
2) A Short History of Life on Earth
3. A Short Trip from 500 thousand to 7.4 billion people on Earth
4) Population Ecology
5) Energy Flow Through The Ecosystem - It's a DOG-EAT-DOG World!
What is Life? How is it Defined?
pH LAB DEMONSTRATION using RED CABBAGE EXTRACT
MOVIE TRANSCRIPTS
Video #1 WHAT IS LIFE - TRANSCRIPT
WHAT IS LIFE??
General Biology with ScientistCindy
What Does it Mean to Be Alive?
What sorts of things are considered to be alive?
The answer is not as simple as you might think!
LIFE
How to define "life" is a sweeping question that affects whole branches of biology, biochemistry, genetics, and ultimately the search for life elsewhere in the universe.
NASA
Most Scientists agree that in order to be considered "ALIVE" it must...
HAVE ORDER #1
Reproduce #2
Grow and Develop #3
Most Scientists agree that in order to be considered "ALIVE" it must...
Process Energy #4
Respond to Environment #5
Regulation (Homeostasis) #6
Most Scientists agree that in order to be considered "ALIVE" it must...
Display Evolutionary Adaptation #7
regulate, respond
and
reproduce, but they are not alive!
Crystals grow
But Wait!
Viruses
But Wait!
Viruses display all of the characteristics of life!
We had to add the clause "must be able to reproduce without using a host" to consider viruses not to be living
BOO!
WHENEVER WE
to the question,
WE HAVE
think
WHAT IS LIFE?
mother nature laughs
THE ANSWER
LIFE OR NOT??
Life Has a Way of Surprising Us!
We have found organisms determined to live out their lives in the most extreme conditions!
Archae
Some live near rift vents in the deep sea at temperatures well over 100 degrees Centigrade.
General Biology with ScientistCindy
What Does it Mean to Be Alive?
What sorts of things are considered to be alive?
The answer is not as simple as you might think!
LIFE
How to define "life" is a sweeping question that affects whole branches of biology, biochemistry, genetics, and ultimately the search for life elsewhere in the universe.
NASA
Most Scientists agree that in order to be considered "ALIVE" it must...
HAVE ORDER #1
Reproduce #2
Grow and Develop #3
Most Scientists agree that in order to be considered "ALIVE" it must...
Process Energy #4
Respond to Environment #5
Regulation (Homeostasis) #6
Most Scientists agree that in order to be considered "ALIVE" it must...
Display Evolutionary Adaptation #7
regulate, respond
and
reproduce, but they are not alive!
Crystals grow
But Wait!
Viruses
But Wait!
Viruses display all of the characteristics of life!
We had to add the clause "must be able to reproduce without using a host" to consider viruses not to be living
BOO!
WHENEVER WE
to the question,
WE HAVE
think
WHAT IS LIFE?
mother nature laughs
THE ANSWER
LIFE OR NOT??
Life Has a Way of Surprising Us!
We have found organisms determined to live out their lives in the most extreme conditions!
Archae
Some live near rift vents in the deep sea at temperatures well over 100 degrees Centigrade.
Video #5 ENERGY FLOW THROUGH THE ECOSYSTEM - TRANSCRIPT
Energy Flow transcript
Through
The Ecosystem
brought to you by
ScientistCindy
Visit me at ScientistCindy.Com
This is where we live.
... the third planet from the Sun
It's the best spot!
That's fine with me
we have water
About 2/3 of the Earth is covered by water
-4.5 billion years-
Man, Time Flies...
It's been around a while
The age of the Earth is >
with creature big and small
Lots of things live here
we share our world with them all
penGuins.com
*Including humans
Earth is home to millions of species of life...
They must obtain that energy and process that energy in order to get it into a form it can use!
All Living thing require energy
Energy Must Flow Through the Ecosystem
The Sun supports most of Earth's ecosystems.
Plants create chemical energy from abiotic factors that include solar energy.
Producers are organisms that make energy out of sunlight
The food energy created by producers is passed through the food chain.
An Ecosystem
When energy flows througH
Energy Cannot Be Created
Energy
Cannot Be
Destroyed
Almost All of the Energy in an Ecosystem Originates from the Sun
Primary
Consumer
Consumers consume other organisms to gain energy
Producers
Make their own energy out of abiotic factors - almost always, sunlight!
1
4
2
Secondary
Consumer
4
Tertiary
Consumer
3
This is called the FOOD CHAIN
Primary
Consumer
Producers
1
2
Secondary
Consumer
4
Tertiary
Consumer
3
At each level of a food chain, a lot of energy is lost.
Only 10% of the energy is transferred to the next step
Some energy goes into animal wastes.
Some energy is lost as heat...
Some energy goes into growth and development.
It's because so much energy is lost that most food chains have just a few levels. There’s not enough energy left for higher levels.
you’re thinking...
I know what
But, is it REALLY
that simple?
COMPLEX
IT IS MORE
Many FOOD chains come
together to form a
GOOD POINT!
ECOSYSTEM
IT IS MORE
REAL
IN A
FOOD WEB!
Here's a Food Web!
Hungry Animals!
Remember that We are ALL
CONNECTED!
I'd like to
THANK YOU
for LISTENING!
Learn more at www.ScientistCindy.Com
Through
The Ecosystem
brought to you by
ScientistCindy
Visit me at ScientistCindy.Com
This is where we live.
... the third planet from the Sun
It's the best spot!
That's fine with me
we have water
About 2/3 of the Earth is covered by water
-4.5 billion years-
Man, Time Flies...
It's been around a while
The age of the Earth is >
with creature big and small
Lots of things live here
we share our world with them all
penGuins.com
*Including humans
Earth is home to millions of species of life...
They must obtain that energy and process that energy in order to get it into a form it can use!
All Living thing require energy
Energy Must Flow Through the Ecosystem
The Sun supports most of Earth's ecosystems.
Plants create chemical energy from abiotic factors that include solar energy.
Producers are organisms that make energy out of sunlight
The food energy created by producers is passed through the food chain.
An Ecosystem
When energy flows througH
Energy Cannot Be Created
Energy
Cannot Be
Destroyed
Almost All of the Energy in an Ecosystem Originates from the Sun
Primary
Consumer
Consumers consume other organisms to gain energy
Producers
Make their own energy out of abiotic factors - almost always, sunlight!
1
4
2
Secondary
Consumer
4
Tertiary
Consumer
3
This is called the FOOD CHAIN
Primary
Consumer
Producers
1
2
Secondary
Consumer
4
Tertiary
Consumer
3
At each level of a food chain, a lot of energy is lost.
Only 10% of the energy is transferred to the next step
Some energy goes into animal wastes.
Some energy is lost as heat...
Some energy goes into growth and development.
It's because so much energy is lost that most food chains have just a few levels. There’s not enough energy left for higher levels.
you’re thinking...
I know what
But, is it REALLY
that simple?
COMPLEX
IT IS MORE
Many FOOD chains come
together to form a
GOOD POINT!
ECOSYSTEM
IT IS MORE
REAL
IN A
FOOD WEB!
Here's a Food Web!
Hungry Animals!
Remember that We are ALL
CONNECTED!
I'd like to
THANK YOU
for LISTENING!
Learn more at www.ScientistCindy.Com
