An animal can reproduce asexually when isolated and sexually when mates are available. Its habitat is stable for several months but then changes unpredictably.
Which combination of advantages is most likely?
asexual reproduction provides genetic variation; sexual reproduction aids rapid increase
asexual reproduction needs a mate; sexual reproduction preserves identical offspring
asexual reproduction aids rapid increase; sexual reproduction provides genetic variation
asexual reproduction preserves identical offspring; sexual reproduction needs no mate
40 exam-style questions on Edexcel GCSE Biology 3.1 Reproduction and meiosis, covering 3.1.1 Advantages and disadvantages of reproduction and 3.1.2 Role of meiotic cell division. Each one has a worked solution and a mark scheme showing where the marks go.