Which of the following subclasses does not contain any orders?

Which of the following is not a monocot?

Assertion $(A)$: Hibiscus is called an angiosperm.
Reason $(R)$: In Hibiscus,the ovules are enclosed and covered by the ovary.

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

Organisms of a kingdom that possess both a rigid cell wall and the ability to form embryos are characterized as what?

Into how many classes are angiosperms classified?