Biomagnification of DDT causes decline in bird population by

Question

Biomagnification of DDT causes decline in bird population by (A) Disturbing of Ca metabolism (B) Thinning of egg shells (C) Premature breaking of egg shells (D) All of the above

Tardigrade Admin · Accepted Answer

High concentrations of DDT disturb calcium metabolism in birds, which causes thinning of eggshell and their premature breaking, eventually causing decline in bird populations.

Q. Biomagnification of DDT causes decline in bird population by

Disturbing of Ca metabolism

Thinning of egg shells

Premature breaking of egg shells

All of the above

High concentrations of DDT disturb calcium metabolism in birds, which causes thinning of eggshell and their premature breaking, eventually causing decline in bird populations.