Angiosperms differ from gymnosperms in having

Into how many classes are angiosperms (flowering plants) classified?

Which group of plants is the most dominant and largest plant group?

The smallest angiospermic/dicot parasite is

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

Which of the following kingdoms includes multicellular producers?