MCQ
Which is the main causative factor of desertification
- ADevelopmental activities
- BTourism
- ✓Overgrazing
- DIrrigated agriculture
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$R$ : It could replace the use of monkeys to test the safety of batches of the vaccine.
$I.$ Organs which are different in basic structure and origin but performs similar functions are called analogous organ
$II.$ Organs with different to basic structure and origin but perform similar functions are called homologous organs
$III.$ Homologous organs lead to convergent evolution
$IV.$ Analogous organ leads to divergent evolution
The correct combination is
$(a)$ Numbers $(b)$ Biomass
$(c)$ Pug makers $(d)$ Height