Biodiversity loss occurs due to the reasons given below
$(i)$ Habitat loss and fragmentation
$(ii)$ Co-extinction
$(iii)$ Over-exploitation
$(iv)$ Alien species invasion
Identify the correct reasons
$(i)$ and $(ii)$
$(i),\,(ii)$ and $(iii)$
$(ii),\,(iii)$ and $(iv)$
$(i),\,(ii),\,(iii)$ and $(iv)$
The word 'livestock' includes
Fertilized egg develops into larva and when it is given more food in comparison to others, it develops into
Assertion : In case of vegetatively propagated crops, pure-line selection is not required.
Reason : Hybrid vigour is mostly used in vegetatively propagated plants.