Fertilisation in Animals: External vs Internal · Zoology

Which factor most strongly favors the evolution of internal fertilisation?

  1. Aquatic habitat
  2. High gamete mortality
  3. Terrestrial life
  4. Low parental care
Show answer and explanation

Correct answer: Terrestrial life

Terrestrial life favors internal fertilisation because it prevents desiccation of gametes. It allows reproduction independent of water bodies.

Difficulty: Medium Question 13 of 20

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