- Co-evolution is the process where two or more species influence each other’s evolution. In the case of \(\textit{Ophrys}\) and its specific bee species, the orchid evolved to mimic the female bee, while the bee adapted to the orchid's mimicry.

Identify the labelled parts P, Q, R, and S in the stages of a dicot embryo shown in the diagram.

Choose the option that indicates correct labelling of 'P', 'Q', 'R', and 'S' of embryo in different stages of its development.
Which of these options is true in the context of the below diagram of pollen grain?
