Which one of the following statement is correct regarding stomata, lenticel and hydathode?
i) Opening and closing is not regulated in lenticel and hydathode
ii) Stomata and lenticel allow gaseous exchange
iii) Stomata and hydathode are living cells but lenticel is a dead cell,
iv) Gaseous exchange is not possible in hydathode
i only
ii and iii only
i, iii and iv only
all
