Sapindales is a

How many of the following statements are correct?
$(A)$ Each taxonomic category is a unit of classification.
$(B)$ Taxonomic groups are distinct biological entities.
$(C)$ Genera are aggregates of closely related families.
$(D)$ Both vegetative and reproductive characters are used to characterise the families.

Which scientific term is used for the study of groups of organisms like mammals,reptiles,and plants?

Which of the following is considered a unit of classification?

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

Systema Naturae was written by