[Campbell Biology P.1069] Which of the following statements about reproduction in animals, as... | Practice Question

Which of the following statements about reproduction in animals, as described in the text, are true? Select all that apply

  • A: In sexual reproduction, the zygote is formed by the fusion of haploid gametes.
  • B: Hermaphroditism is an adaptation that allows animals with limited opportunities to find mates to reproduce.
  • C: In parthenogenesis, an unfertilized egg develops into a new individual, and it is a common response to high population density in vertebrates.
  • D: All forms of asexual reproduction rely solely on mitotic cell division.
  • E: The male gamete (sperm) is typically larger and nonmotile compared to the female gamete (egg).

Explanation

Option A is correct: Sexual reproduction involves the fusion of haploid gametes to form a diploid zygote. Option B is correct: Hermaphroditism is an adaptation for animals with limited mate-finding opportunities. Option C is incorrect as parthenogenesis in vertebrates is a rare response to low population density. Option D is incorrect because 'most' not 'all' asexual reproduction relies on mitosis, and parthenogenesis involves egg development. Option E is incorrect because eggs are large and nonmotile, while sperm are small and motile.