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Biolmagnification ofDDT caused decline i...

Biolmagnification ofDDT caused decline in Bid population by

A

Bringing disturbance in calcium methabolism

B

Thining of egg shell

C

Premature breaking of eggs

D

All the above

Text Solution

Verified by Experts

The correct Answer is:
D
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Biomagnification of DDT caused decline in bird population by:

How has DDT caused decline in bird population ?

How has DDT caused decline in bird population ?

A population is

Population is

Assertion: Biomagnification of DDT can enhance the decline in bird population. Reason: DDT causes thinning of egg shell and their premature breaking by disturbing calcium metabolism.

Size of population is :

Population means

Members of a population

The declining phase of a population occurs when