A ppt on the levels of biological organization

1. Levels of Biological Organization

2. Biosphere
Our entire planet Earth and all its living
inhabitants.

3. Ecosystem
Living things in a particular region and their
nonliving physical environment.

4. Community
• The living part of an ecosystem.

5. Population
• Group of individuals of a particular type that
live in the same area and actively interbreed
with one another.

6. Organism
• Independent individual.

7. Organ system
• Body part arranged to carry out a particular
general function within the organism.

8. Organ
• Group of tissues that perform specialized
function.

9. Tissue
• Group of similar cells.

10. Cell
• The simplest entity that has all the properties
of life.

11. Organelle
• Structure that performs specialized function
for the cell.

12. Molecule
• Clusters of atoms.

13. Atom
• The smallest unit of matter that still has
distinct chemical properties.

14. Subatomic particles
• Fundamental units of energy and matter.

15. All levels can be grouped in 3:
• Cellular
• Organismal
• Populational

19. Review
• Clusters of atoms. (molecules)
• Our entire planet earth. ( ? )
• Independent individual. ( ? )
• Group of similar cells. ( ? )
• All of the various species living in the same
area. ( ? )
• Structure that performs specialized function
for the cell. ( ? )

20. Question 1
• Which of the following is defined as “the
living part of an ecosystem?”
• A. biosphere.
• B. community.
• C. organism.
• D. population.
• E. ecosystem.

21. Question 2
• Which of the following is defined as “group
of individuals of a particular type that live in
the same area and actively interbreed with
one another?”
• A. ecosystem.
• B. community.
• C. population.
• D. organism.

22. Answers
Question 1: B. community.
Question 2: C. population.