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A-Level Biology OCR A

Species E.G Pre Zygotic Reproductive Barrier Physical Describe Types

Five types of pre-zygotic reproductive barriers are geographical, behavioral, ecological, mechanical, and temporal.

Cinq types de barrières reproductives pré-zygotiques sont géographiques, comportementales, écologiques, mécaniques et temporelles.

Front Describe 5 types of pre-zygotic reproductive barrier.
Back Pre-zygotic reproductive barrier types:
  • Geographical - physical barrier preventing reproduction
  • Behavioral - when species have different courtship behaviors (e.g. responding to different mating calls)
  • Ecological - two species occupy different habitats  (e.g. lions and tigers could potentially interbreed but live in diff habitats)
  • Mechanical - physical differences prevent copulation/pollination (e.g. chihuahua and great dane)
  • Temporal - two species mate at different times of year

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