Differentiate between Stamen and Pistil.

Which of the following statements are true?
$P = \text{Papaver}$ has a multicarpellary syncarpous pistil.
$Q = \text{Endothecium}$ provides nourishment to the Microspore Mother Cell.
$R = \text{Commelina}$ has chasmogamous and cleistogamous flowers.

Select the correct option for the following statements:
$(i)$ In the embryo sac of angiosperms,the synergids and antipodals degenerate / do not degenerate after fertilization.
$(ii)$ In the leaves of dicotyledonous plants,parallel / reticulate venation is observed.

Offspring produced by sexual reproduction exhibit more variation than those produced by asexual reproduction because

In $Paramecium$,both autogamy and conjugation are considered sexual processes because of:

Pollen extract stimulates the formation of fruit in the unpollinated carpel because the extract contains the following hormone: