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Questions and Answers
In what form does asexual reproduction in sponges occur?
Which organism utilizes budding as a method of asexual reproduction?
What is the primary purpose of reproduction in living organisms?
Which of the following best describes the process of gemmule formation?
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What characterizes the progeny produced through asexual reproduction?
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Which of the following processes does not involve meiosis?
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What is the primary reason for the formation of a resistant layer around gemmules?
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Which of the following organisms primarily undergoes asexual reproduction through budding?
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Study Notes
Reproduction
- Reproduction ensures the continuation of species.
- It involves the formation of new life forms from pre-existing ones.
- It allows species to survive even though individuals have limited lifespans.
Asexual Reproduction in Animals
- A common method among lower animals.
- Does not involve meiosis or gamete formation and fusion.
- Progeny are genetically identical to the single parent, also known as clones.
Gemmule Formation (Asexual Reproduction)
- Occurs in sponges.
- Involves the formation of an internal bud called a gemmule.
- Gemmules contain archaeocytes, which are dormant cells that develop into a new organism.
- Archaeocytes are coated with a thick, resistant layer for survival in unfavorable conditions.
- Gemmules hatch and develop into new individuals when favorable conditions return (water, temperature).
- Example: Spongilla
Budding (Asexual Reproduction)
- A simple method occurring in favorable conditions.
- Found in coelenterates (Hydra, corals) and some colonial ascidians.
- In Hydra, a small outgrowth forms on the basal end of the body.
- The outgrowth develops into a new individual, which eventually detaches from the parent.
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Description
Explore the concept of reproduction in animals, focusing on asexual reproduction methods such as gemmule formation and budding. This quiz dives into how species ensure survival through these processes and the significance of genetic cloning. Test your understanding of these fascinating biological phenomena!
