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1.draw a diagram to show various trophic levels upto fourth stage.

2.appreciate the role of physical factors in sustenance of life in habitat.
3.observe a plant in your backyard and write a note on producer-consumer relationship.



1)plant in the backyard is a producer
2)insect, birds dwelling in the tree are consumers
3)plants provide food for insects (primary consumers)
4)insects will become food for birds(secondary consumers)
5)finally the birds are eaten by the hawk(teritary consumers)
6)hence there is a interdependence between the producers and the consumers in the backyard
2 3 2
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