Species are considered as

Which one of the following statements is not true about the universal rules of binomial nomenclature?

The biological concept of species was proposed by ........

Which of the following is true for the 'Father of Taxonomy'?

Identify the odd one out for wheat ($Triticum$ $aestivum$).

Select the correct statements $(i-iv)$ regarding taxonomic categories.
$(i)$ Each step or rank in the hierarchy is called a taxonomic category.
$(ii)$ Species is a group of individual organisms with fundamental similarities capable of breeding among themselves.
$(iii)$ Taxonomic studies of all known organisms have led to the development of common categories like kingdom,phylum or division,class,order,family,genus and species.
$(iv)$ Lower the category,greater is the difficulty of determining the relationship to other taxa at the same level.