4. -Those Organisms
Which Produces
Food Are Called
Producers.
-The Example Of
Producers Are
Green Plants And
Certain Blue-Green
Algae.
5. - Those Organisms Which Consume Food
Prepared By Producers Are Called Consumers.
- All The Animals Are Consumers.
- If An Animal Eats Grass or Other Green
Plants Or Their Products Itself We Say That
It Gets The Food From Producers Directly.
- If An Animal Eats The Meat Of Other
Animal (Which Eats Grass), Then We Say
That It Gets The Food From Producer
Indirectly.
6. Consumers Can Be Further Divided Into Three
Groups
• Herbivores
– Eat Only Plants.
E.g.- Cow, Goat, Horse,
Deer.
• Carnivores
– Eat Only Other Animals.
E.g. – Lion, Tiger, Frog,
Vulture.
• Omnivores
– Eat Plants & Animals.
– E.g. – Humans, Dog,
Crow.
7.
8. • It Involves One
Organism At Each
Trophic Level.
– Primary Consumers – Eat
autotrophs (producers).
– Secondary Consumers –
Eat the primary consumers.
– Tertiary Consumers – Eat
the secondary consumers.
– Decomposers – Bacteria
and Fungi that break down
dead organisms and
recycle the material back
into the environment.
12. 1st Order
Consumer
Producer
(Trapped Sunlight &
Stored Food)
2nd Order
Consumer
3rd Order
Consumer
4th Order
Consumer
13. • The Network Of A
Large Number Of
Food Chain Existing In
An Ecosystem Is
Called A Food Web.
• The Food Web Has
Many Intercrosses
And Linkage Among
The Various Species
(Producers And
Consumers) Present In
It.
