$Wolffia$ is an example of....

Which of the following kingdoms includes multicellular producers?

Which is the correct option for the angiosperm plants having the following characteristics?
$i.$ Name of the plant with size $2-5 \ mm$
$ii.$ Name of the tallest plant
$iii.$ Name of the plant with the heaviest and largest flower
$iv.$ Name of the plant with the tallest and largest inflorescence

Into how many series is the class Monocotyledonae divided?

Which of the following is true for a flowering plant?

Angiosperms are dominant on the land surface due to their $........$.