Here are 5 important things needed to sustain the E-column and what would happen if not followed: 1. Maintain proper water flow - Without water flow, waste would accumulate and oxygen levels would decrease, harming organisms. 2. Control temperature - Temperature outside the optimal range would stress or kill organisms. 3. Remove excess waste - Accumulated waste would poison the system. 4. Maintain organism diversity - Loss of any group would disrupt nutrient cycling and food webs. 5. Monitor abiotic factors like pH and oxygen - Changes could make the environment unsuitable for organisms. If these things are not maintained, the whole ecosystem would become imbalanced and collapse over time as conditions became inhosp

1. ECOLOGICAL
SYSTEM

2. CELL PHONES
FUNCTION
Why do we have a
Cell phone system?
Structures Behavior Contribution to Function
What part is What does the How does the part help contribute to its
involved? part do? function?
Interconnection: Describe how the different structures work together to perform its function/s.
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3. Systems have BFS…. IC
• Behavior = Role (role of each part)
• Function = Purpose (purpose of the whole system)
• Structure = Parts
• Interconnection – there are links between parts
• Changes – If a part fails to perform, it will affect
the whole system

4. 4 Laws of Ecology
1- Everything is connected to everything else.
2- Everything must go somewhere.
3- Nature knows best.
4- There is no such thing as a free lunch
The Earth as a
Closed System
HEAT
Energy, flows, matter cycles

5. 4 Laws of Ecology
1- Everything is connected to everything else.
2- Everything must go somewhere.
3- Nature knows best.
4- There is no such thing as a free lunch
Is the
E-column a
Closed System?
Explain.
HEAT
Energy, flows, matter cycles

6. The Ecosystem
All the living and nonliving things that
interact in a particular area make up
an ecosystem.
Organisms live in a specific place
within an ecosystem.
An organism obtains
food, water, shelter, and other
things it needs to live, grow, and
reproduce from its surroundings.

7. The place where an organism lives and that provides the things the
organism needs is called its habitat.
Terrestrial Habitats
Freshwater Habitats
Image source: http://www.bbc.co.uk/nature/habitats
Marine Habitats

8. A species is a group of organisms
that are physically similar and
can reproduce with each other to
produce fertile offspring.
All the members of one species
in a particular area are referred
to as a population.
All the different populations that
live together in an area make up
a community.

9. BIOTIC AND ABIOTIC FACTORS
http://www.youtube.com/watch?v=y-wpbhnom70
http://www.youtube.com/watch?v=rNfmew9C508 Learn
more…. Biotic and Abiotic Factors

10. The living parts of an ecosystem
are called biotic factors.
The nonliving parts of an
ecosystem are called abiotic
factors.
Abiotic factors include
water, sunlight, oxygen, tem
perature, and soil.
Image source : http://en.wikinoticia.com/

12. Level of Acidity (pH)

14. The biotic community and abiotic factors together form an
ecosystem.
Image source: exploringnature.org
The study of how living things interact with each other and with
their environment is called ecology.

15. Group Brainstorm:
 Create a list of biotic and abiotic factors for
your assigned chamber.
 Share your list to your group mates.
 Discuss and make revisions in your list.
Make a list of 5 important things you need to do to sustain
your E-column.
Think about what each chamber contributes to the other chambers.

16. Make a list of 5 important things you need to do to sustain your
E-column. What will happen if these are not followed?
Think about what each chamber contributes to the other chambers.
5 Important Things Negative Effects