1. Levels of Organization of Life
Presentation based on one from

2. GAIA Ecosphere Ecosystem Organism System Organ Tissue Population
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere
GAIA

3. ATOMS
Smallest part of matter
NON-living

4. Molecules
2 or more bonded atoms
Form compounds
NON-living

5. Organic molecules carbohydrates, proteins, lipids and nucleic acids.
Inorganic molecules
Water,
Salts
And vitamins.

6. Macromolecule
Very large molecules
NON-living

7. Organelles
“Tiny organs”
Made of macromolecules

8. Cell
Made of organelles
Basic unit of structure & function
LIVING

9. Tissue
The same kind cell working together
Living

10. Tissues found in the leaf
A tissue is a group of cells of similar structure that perform a shared function
Animal tissues:
muscle
nervous
upper epidermal
tissue
palisade mesophyll
spongy mesophyll tissue
lower epidermal
Tissues found in the leaf
Cross-section of a leaf
Slide taken from clickbiology.com

11. Organs
Tissues that work together
Living

12. heart lungs liver stomach brain kidneys
An organ is a structure made of a group of tissues working together to perform specific functions
heart
lungs
liver
stomach
brain
kidneys
Plant organs include the stem and the leaves
Slide taken from clickbiology.com

13. An organ system is a group of organs that coordinate to perform related functions
lymphatic
system
digestive
system
reproductive
system
skeletal
system
endocrine
system
respiratory
system
excretory
system
muscular
system
nervous
system
circulatory
system
In plants the shoot is an organ system consisting of leaves and the stem
Slide taken from clickbiology.com

14. Systems
Organs that work together
Living

15. Organism Entire living things (organisms) Usually made of systems
May be a single cell
Living

16. What type of organism is this? Unicellular or pluricellular?

17. Population
Same type of organism living together

18. Community
Several populations living together
Population interact

19. Ecosystem
A biotic (living) community plus the abiotic (nonliving) features

20. Biome
Similar ecosystems on earth together

21. Ecosphere Whole living layer around the globe
Includes abiotic features

22. De: http://loqueheaprendidode. blogspot

23. Who is GAIA?
Image from
Sandra Ingerman's Blog

24. Who is GAIA?
In Greek mythology, Gaia was a Titan who personified Earth. She was the mother of several later Titans, including Cronus, Rhea, Iapetus (father of Atlas), and Oceanus. She was worshipped as the Earth mother goddess.

25. Can you write the levels of organization of life?

26. Ecosphere Ecosystem Organism System Organ Tissue Population Community
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

27. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

28. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

29. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

30. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

31. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

32. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

33. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

34. Ecosphere Now, say an example of Ecosystem Organism System Organ
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue
Organ
System
Organism
Population
Community
Ecosystem
Ecosphere

36.
Based on: with some slides added from clickbiology.com plus personal adds.