MCQ
Industrial melanism is an example of:
- ADrug resistance.
- BDarkening of skin due to smoke from industries.
- CProtective resemblance with the surroundings.
- DDefensive adaptation of skin against ultraviolet radiations.
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$A$. Over exploitation $B$. Co-extinction $C$. Mutation $D$. Habitat loss and fragmentation $E$. Migration
Choose the correct option:
$I$. Developed at $CDRI$, Lucknow
$II$. Contains a steroidal preparation
$III$. 'Once-a-week' pill
$IV$. Many side effects
$V$. High contraceptive value
$VI$. Very few side effects
$VII$. Low contraceptive value
A drug used for ___$A$___ patients is obtained from a species of the organism ___$B$___ .
The one correct option for the two blanks is