Cards (5)

  • What are the three types of selection?
    Sexual, Inter-sexual and Intra-sexual
  • Anisogamy= differences between male and female sex cells
  • Male cells (sperm) are small, mobile and continuously produced from puberty to old age
  • Female cells (ova) are larger, static and produced at intervals for a limited number of years
  • Consequences of anisogamy are that there are plenty of fertile males but fewer females- this gives rise to different mating strategies (inter-sexual and intra-sexual)