Asexual reproduction
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  • 1. ASEXUALREPRODUCTION
  • 2. WHAT IS ASEXUAL REPRODUCTION?  Itis one of the two types of reproduction which splits an organism into two to produce another of the same species.  In asexual reproduction, one organism produces offspring that are identical to itself and inherits the genes of that parent only.  Itis reproduction which does not involve ploidy reduction, fertilization, gametes or sex cells.
  • 3. FOUR TYPES OF ASEXUAL REPRODUCTION IN ANIMALS1) Fission or Budding One or more individuals are formed from the original. The new organism remains attached as it grows, separating from the parent organism only when it is mature.
  • 4. 2) Fragmentation A parent breaks into different fragments that eventually form new individuals. The splitting may or may not be "intentional"- it may occur due to man made or natural damage by the environment or predators this kind of organism´s may develop specific organs or zones that may be shed or easily broken off.
  • 5. 3) Regeneration When an animal that is capable of regeneration loses a body part, it can grow a replacement part. If the lost body part contains enough genetic information from the parent, it can regenerate into an entirely new organism. Echinoderms exhibit this type of reproduction.
  • 6. 4) Gemmules (internal budding) A parent releases a specialized mass of cells that can develop into an offspring. Gemmules are internal buds found in sponges that are the result of asexual reproduction, and are a response to a hostile environment.