MCQ
The force that initiates evolution is:
- AVariation
- BMutation
- CExtinction
- DAdaptation
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$I.$ $pH$ of soil
$II.$ mineral composition of the soil
$III.$ water holding capacity of soil
$IV.$ weather condition
Choose the correct option
Conditions:
$1$. Burrowing in soil to escape high temperature.
$2$. Losing heat rapidly from the body during high temperature.
$3$. Bask in sun when temperature is low.
$4$. Insulating body due to thick fatty dermis.