sexual reproduction involves fusion of gametes and mixes the genetic information which causes variation
asexual reproduction doesn't involve cell fusion and therefore there is no variation as all the genetic information comes from one parent. these are clones
clones are genetically identical individuals
in animals, the male sex cells are sperm
in animals, the male sex organs are testes
in animals, the female sex cells are eggs
in animals, the female sex organs are ovaries
egg+sperm->fertilisation-> fertilised egg or zygote produced which then divides into a ball of cells= embryo.
in plants, the male sex cells are pollen
in plants, the male sex organs are the anthers
in plants, the female sex cells are the ovules
in plants, the female sex organs are the ovaries
pollination- insects or wind transfer pollen from one flower, to the stigma of another flower
the nucleus of a pollen grain + nucleus of an ovule -> fertilisation
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