MCQ
Phylloclade of Opuntia is stem because
- AIt bears flowers and leaves
- BIt arises in the axil of leaf
- COnly $(b)$ is correct
- ✓Both $(a)$ and $(b)$ are correct
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$I.$ limited space and nutrient
$II.$ accumulation of toxic agent
$III.$ unlimited space and nutrient
$IV.$ accumulation of nutrient agent
Choose the correct combination of options
$(i)$ It increases the genetic variability in the population of organisms from one generation to the next.
$(ii)$ It decreases genetic variability
$(iii)$ It occurs in all cells of our body.
$(iv)$ Important process of evolution.