$A$. Citrus and Ricinus have synandrous condition.
$B$. In epitepalous condition,the cohesion occurs between tepal and filament of stamen.
$C$. Tetradynamous condition consists of two long and four short stamen filaments.

The following diagrams represent the type of placentation in an ovary. Identify the correct combination of labelling for $1 - 2 - 3$.

Thorns,spines and prickles work as . . . . . . in plants.

Read the following statements and choose the set of correct statements:-
$(A)$ In some plants like $Monstera$,roots arise from parts of the plant other than the radicle.
$(B)$ The main functions of the root system are absorption of water and minerals from the soil and providing a proper anchorage to the plant parts.
$(C)$ Leaves originate from shoot apical meristem and are arranged in an acropetal order.
$(D)$ In $Alstonia$,a single leaf arises at each node of stem.
$(E)$ The flowers are hypogynous in cucumber.
Choose the correct option from the options given below:-

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Hibiscus	$(P)$ Bougainvillea spectabilis
$(2)$ Catharanthus roseus	$(Q)$ Lemon
$(3)$ Bougainvillea	$(R)$ Hibiscus rosa-sinensis
$(4)$ Citrus limon	$(S)$ Periwinkle

How would you distinguish monocots from dicots?