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6. What is a disadvantage of self pollination?
- There's a lack of variation, decreasing the chance of survival
- Variation increases within individuals
- Energy consumption is high as many gametes must be produced
- Favourable gene combinations are retained
7. What becomes the testa?
- Ovary
- Embryo sac
- Outer integument
- Fertilised ovule
8. What is pollination?
- The transfer of pollen from anther to stigma
- The transfer of pollen from stigma to anther
- The production of an egg cell
- The production of CO2 in a plant