Sexual reproduction in plants — practice question

Using Fig. 2.1 and your biological knowledge, describe three differences between the pollen grains of species A and species B. Enter your responses in Table 2.1.

Cross-pollination occurs in both species A and species B. Describe what the term cross-pollination means.

From the evidence in Fig. 2.1, describe how cross-pollination is most likely to happen in species A and in species B.

Fig. 2.2 is a photograph of the flowers of species A. State two features that would be present in the flowers of species B but are absent from those of species A.