Question

Biomagnification occurs due to toxic chemical accumulated by an organism
$a$. Cannot be metabolised
$b$. Can be metabolised
$c$. Cannot be excreted
$d$. Can be excreted

• A. $a$ and $c$
• B. $b$ and $d$
• C. $a,b$ and $c$
• D. $a,b,c$ and $d$

Answer 1

Answer: (A)

• A few non-biodegradable toxic substances often present in industrial waste water can undergo biological magnification or biomagnification in the aquatic food chain.
• This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted and thus passed to the next higher trophic level.