.......... is a group of closely related species.

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

Four statements are given below regarding species. Which two statements are correct?
$(1)$ Maximum similarity in maximum number of characters.
$(2)$ First letter in capital letter.
$(3)$ Latin word written after the scientific name.
$(4)$ Repetition of the species name is not possible.

Hierarchical classification means

Interbreeding natural populations of animals are referred to as belonging to the same

Cat is included in which family?