When fertilization take place in plants ?

What is seen in zygote during embryogenesis ?

Which of the following statements is incorrect ?
$(i)$ Bamboo species flower only once in their life time, generally after $50-100$ years and produce large number of fruits and die.
$(ii)$ In animals, the juvenile phase is followed by morphological and physiological changes prior to active reproductive behaviour.
$(iii)$ The reproductive phase is of same duration in all organisms.
$(iv)$ Juvenile phase is the period of growth between the birth of an individual till it reaches reproductive maturity.

Medium for transport of gametes in Algae, Bryophytes, Pteridophytes.

In which of the following meiosis does not seen?