A reproductive mode wherein multiple offspring originate from a single zygote or egg is____________________?
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Answer: B. Polyembryony
Explanation
Polyembryony is the reproductive mode where multiple offspring originate from a single zygote. Embryonic cleavage splits the original fertilized egg into numerous separate developing larvae. This specialized strategy maximizes reproductive output from a single fertilization event. Parasitic wasps frequently utilize polyembryony to produce hundreds of offspring within one host. Cellular divisions during early embryogenesis produce multiple distinct twin embryos successfully. Nutrient resources from the host support the massive proliferation of developing embryos.
Polyembryonic parasitoids serve as important biological control agents suppressing agricultural pests. Entomologists study embryonic development modes to understand insect reproductive evolution. Parasitic wasp reproduction rates influence population dynamics of destructive caterpillar hosts. Viviparity involves giving birth to live young rather than splitting single zygotes. Paedogenesis describes reproduction occurring within immature larval or pupal developmental stages. Parthenogenesis is reproduction through unfertilized egg development without male gametes.
- Subject
- Agriculture
- Category
- Agriculture
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- —
- Difficulty
- medium
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