Question 1
Paper 2Medium3 marksTwo individual plants, A and B, are of the same species. An insect visits flowers on both plants. The table shows when pollen is available and when stigmas are receptive.
| Plant | Pollen available | Stigmas receptive |
|---|---|---|
| A | Days 1–2 | Days 4–5 |
| B | Days 4–5 | Days 1–2 |
(a)[1]
State which plant’s pollen could be transferred to a receptive stigma on day 1.
(b)[2]
Explain how the different maturation times and one feature of an insect-pollinated flower promote cross-pollination between the plants.