Life Cycles of Protists

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Presentation transcript:

Life Cycles of Protists

Life Cycle with Diploid Adults Mitosis Zygote 2N N Fertilization Meiosis Eggs Sperm

Life Cycle with Haploid Adults Zygote 2N N Fertilization Meiosis Spores Eggs Sperm Adult Mitosis

Life Cycle with Alternation of Generations Mitosis Adult Zygote 2N N Fertilization Meiosis Spores Eggs Sperm Adult Mitosis

Plasmodium zygote mitosis 2N meiosis fertilization N eggs sporozoites sperm sporozoites merozoites gametocytes

Laminaria Sporophyte Mitosis Zygote 2N N Fertilization Meiosis contains Sporangia Mitosis Zygote 2N N Fertilization Meiosis Zoospores Sperm Eggs Female Gametophyte Male Gametophyte Mitosis

Meiosis (in sporangium) Acellular Slime Molds Plasmodium (nucleus only) Mitosis 2N N Fertilization Meiosis (in sporangium) Spores (resistant) Amoeboid or flagellated cells

Cellular Slime Mold Zygote 2N Meiosis Fertilization N Amoeboid cells (becomes a giant cell) 2N N Fertilization Meiosis Amoeboid cells Some cells become spores (resistant) Migrating colony Fruiting structures

Chalmydomonas zygospore 2N fertilization meiosis N + gamete - gamete adult asexual

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