Sexual Reproduction - Plants

Plants

Animals typically produce male gametes called sperm, and female gametes called eggs and ova, following immediately after meiosis, with the gametes produced directly by meiosis. Plants on the other hand have mitosis occurring in spores, which are produced by meiosis. The spores germinate into the gametophyte phase. The gametophytes of different groups of plants vary in size; angiosperms have as few as three cells in pollen, and mosses and other so called primitive plants may have several million cells. Plants have an alternation of generations where the sporophyte phase is succeeded by the gametophyte phase. The sporophyte phase produces spores within the sporangium by meiosis.

Read more about this topic:  Sexual Reproduction

Famous quotes containing the word plants:

    What I did not yet know so intensely was the hatred of the white American for the black, a hatred so deep that I wonder if every white man in this country, when he plants a tree, doesn’t see Negroes hanging from its branches.
    Jean Genet (1910–1986)

    From the time the Englishman’s bones harden into bones at all, he makes his skeleton a flagstaff, and he early plants his feet like one who is to walk the world and the decks of all the seas.
    Willa Cather (1876–1947)

    Probably if our lives were more conformed to nature, we should not need to defend ourselves against her heats and colds, but find her our constant nurse and friend, as do plants and quadrupeds.
    Henry David Thoreau (1817–1862)