The malarial parasite reproduces asexually inside a human host, where conditions are constant, and sexually inside a mosquito.
One malarial parasite enters a human host. Conditions inside the host are favourable.
Suggest why this one parasite can produce a large population by asexual reproduction.
A new medicine changes the conditions inside human hosts. Parasites produced by sexual reproduction in mosquitoes later enter these hosts.
Explain how sexual reproduction could allow the parasite population to adapt to the medicine over several generations.
Suggest one disadvantage of sexual reproduction for the malarial parasite.
92 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.