$A$ group of plants with similar traits of any rank is known as:

Define and explain the taxonomic category: Order.

Assertion $-A$: The term 'genus' is a single term.
Reason $-R$: $A$ genus may have one or more species; a species may be a single or a combined term.

What is a species?

Which of the following taxonomic categories contains the maximum number of organisms?

The common units of classification are given below. Arrange them in the correct sequence starting from the smallest unit:
$(i)$ Genus $(ii)$ Family $(iii)$ Species $(iv)$ Order $(v)$ Subspecies