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Sexual and Asexual Reproduction.

Sexual and Asexual Reproduction. Asexual Reproduction :. One parent producing an offspring identical to itself (parent) Offspring can live independently. Cell Division in Unicellular Organisms. Binary Fission : form of asexual reproduction in prokaryotic (lacks nucleus) organisms

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Sexual and Asexual Reproduction.

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  1. Sexual and Asexual Reproduction.

  2. Asexual Reproduction: • One parent producing an offspring identical to itself (parent) • Offspring can live independently

  3. Cell Division in Unicellular Organisms Binary Fission: • form of asexual reproduction in prokaryotic (lacks nucleus) organisms • Parent organism splits in half (Eukaryotic – reproduce by mitosis ex: algae, some yeast, protozoans like paramecium)

  4. Budding • Organism develops tiny buds on its body • Asexual reproduction • Buds form from the parent cell so the bud is identical to the parent. • Both unicellular and multicellular • Examples: hydra, plants, some yeast

  5. Regeneration: • Specialized cells grow new tissue when a wound or lost limb occurs • Examples: Starfish, lizard tails, planarian, cuttings from plants….

  6. Asexual Reproduction & Health • Bacteria reproduces at very rapid rates • Reason you get sick within a day..

  7. Spore Formation – spores = small specialized cells that contain a nucleus and cytoplasm surrounded by a thick outside wall which protects the spore. Under the right conditions the spore can rise to a new organism. Found in bacteria, molds, yeast, mushrooms, mosses, ferns and some protozoans.

  8. Sexual Reproduction • Two parents egg (female) and sperm (male) • Fertilization – when egg and sperm unite • Plants growing from seeds and animals growing from eggs • Creates the diversity of life on earth • Offspring is unique

  9. Asexual Reproduction • One parent • Identical to parent • More likely to get disease • Binary Fission, budding, regeneration, spore formation

  10. Sexual Reproduction • Two parents – male and female • Unique offspring ( not identical to parents) • Egg, sperm • Fertilization ( egg and sperm unite) • More resistant to disease

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