Mihika Sonalkar − Profile

In situ: These are conservation strategies that protect biotic resources in their natural habitat 

Examples of in situ: National Parks, Biosphere Reserves, Wildlife Sanctuaries, Sacred Groves and Sacred Lakes 

Ex situ: These are conservation strategies  in which threatened species are reared and preserved in places out of their natural habitat

Examples of ex situ: Sacred plants, Home gardens, Zoos, Botanical Parks, Cryopreservation, Gene Banks.

First living systems having nucleic acids and nucleoproteins with a surface membrane 

C2H5OH → C2H5OC2H5 + H2O
(using conc. H2SO4 at 170 degrees) 

Geez, thanks friend!

hath malna: pachtate reh jana

sona ko pariksha mein pehla number nahi mila isliye vaha hath malte reh gayi

Oops, my bad. But the keyword is not 'extends' either. It is called 'base' (I checked on internet)

Thanks!

Coordinate or Dative Bond is a bond between atoms in which one atom shares both the electrons in between the two.

Well, you are supposed to define it and moreover it's called as Coordinate bond/Dative bond/Polar covalent bond

1-Butanoic is not required since it is anyway at the first position