Medium for transport of gametes in Algae, Bryophytes, Pteridophytes.
Air
Insect
Birds
Water
Genetically identical progeny is produced when an individual
Some organisms like $...A.., ...B..., ...C...$ and $...D...$ the female gamete undergoes development to form new organisms without fertilisation
$A - B - C - D$
What is the major disadvantage of external Fertilization ?
When fertilization take place in plants ?
........and..........is example showing external fertilization