Fig. 3.1 shows flowers of the same plant species at two different developmental stages, D and E.
(a)[2]
On Fig. 3.1, use lines labelled S and C to identify a sepal (S) and a carpel (C).
(b)[3]
The flowers are cross-pollinated by an insect. Explain why the insect must visit flower D before it visits flower E.
(c)[4]
Suggest how flowers of this species are adapted for pollination by an insect such as a bee.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Line finishes on or in sepal, labelled S or sepal” …
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