Different levels of organization. Suitable for under graduate and post graduate studying students in life science stream.

1. Levels of Organization
Dr. Nagabhushan V. C M
Assistant Professor,
Dept. of studies in Zoology,
VSKUB.
9880121090
nagabhushancm@vskub.ac.in

2. the BIOSPHERE

3. A biome is a large area on the Earth's surface that is
defined by the types of animals and plants living
there.

4. An ecosystem includes all of the biotic (living)
things in a given area, interacting with each other,
and also with their abiotic (non-living) things in
their environments.

5. A community is defined as all of the groups of animals
or plants living together in the given geographic area or
environment and usually interacting to some degree.

6. Population is a group of organisms belonging to the
same species that are living in the same area at the
same time. They compete for food, mates and
nesting places.

7. Species is a group of organisms that share common
attributes and share the same name. These can
interbreed to produce viable and fertile offspring (young
ones of their own kind).

8. An organism
is defined as
an individual
animal, plant,
or single-celled
life form which
has an
independent
existence.
Monera

9. An organ system is a group of organs that work
together to perform one or more relative functions.
Organ Systems ????

10. Organ System Components Function
Digestive
Mouth, Esophagus, Stomach,
Intestines
Digestion and absorption
Circulatory / lymphatic
Heart, Blood/Lymph Vessels,
Blood, Lymph
Transport nutrients and waste
products
Respiratory
Lungs, Nose, Mouth, Throat,
Trachea
Gas exchange
Urinary /Excretory Kidneys, U. Bladder & Ureters. Waste excretion, water balance
Nervous CNS and PNS Interprets and responds to stimuli
Reproductive Gonads, Genitals
Reproduction and sexual
characteristics
Skeletal
Bones, Tendons, Ligaments,
Joints
Structure and support
Muscular
Skeletal, Smooth and Cardiac
Muscle
Posture and Body movements
Integumentary system Skin, Nails, Hair, Sweat Glands
Protective, body temperature
regulation
Endocrine
All Glands (Thyroid, Ovaries,
Pancreas)
Produce and release hormones
Immune
White Blood Cells, Lymphatic
Tissue, Marrow
Defend against foreign invaders

11. Organs are a group of tissues in a living
organism that have been adapted to perform
a specific function.

12. Tissue is a sheet of cells having composed of similar
cells of common origin with similar shape that are
specialized to perform a common function

13. Cells are the smallest structural and functional unit of
an organism, typically microscopic and consists of
cytoplasm and a nucleus within a membrane.

14. Organelles are the
differentiated structures
within a cell, each is
meant for performing a
specific function.

15. A molecule is
formed when
two or more
atoms joined
together by the
chemical bonds.

16. An atom is defined as the basic unit of matter.
Atoms are all composed of protons, neutrons and
electrons.

17. ATOM
MOLECULE
MACRO- MOLECULE
ORGANELLE
CELL
TISSUE
ORGAN
SYSTEM
SPS/ORGANISM
POPULATION
COMMUNITY
ECOSYSTEM
BIOME
BIOSPHERE

18. Chemical level
Cellular level
Tissue level
Organ level
System level
Organismal level
Species level
Community level
Ecosystem level
Biome level

19. Levels of
organization in
a glance.

20. 1. The biosphere is the area on Earth
...australianenvironmentaleducation.com
2. 123rf.com
3. Adam
4. Scanning Electron Microscope Eye ...www2.optics.rochester.edu
5. How Many Cells Are In Your Body?nationalgeographic.com
6. Scanning EM Image of Hair Cells in the ...technologynetworks.com
7. Cellular differentiation - Wikipediaen.wikipedia.org
8. Cell Organelles and their Functions by rsscience.com
9. Ppt.com
Acknowledgements:
The following sites were visited for the preparation of presentation and is
acknowledged.