Which plant has the longest pollen tube?

Match the content of List-$I$ with List-$II$:

List-$I$	List-$II$
$1$. Polyembryony	$p$. Black pepper
$2$. Perisperm	$q$. Banana
$3$. False fruit	$r$. Lemon
$4$. Parthenocarpy	$s$. Apple

Choose the correct option from the following:

Nitsch was able to obtain strawberries of curious shapes by:

$Strobilanthus$ $kunthiana$ is also called:

Reproductive parts of an angiospermic plant are

Although sexual reproduction is a long-drawn,energy-intensive complex form of reproduction,many groups of organisms in Kingdom Animalia and Plantae prefer this mode of reproduction. Give at least three reasons for this.