Which specific arrangements are made in botanical gardens?

Match Column $X$ with Column $Y$ and select the correct option:

Column $X$	Column $Y$
$(1)$ Botanical Garden	$(P)$ Key to prepare modern classification systems
$(2)$ Herbarium	$(Q)$ Provides information about rehabilitation and care of rescued animals
$(3)$ Museum	$(R)$ Systematic collection of living plants for scientific purposes
$(4)$ Zoological Park	$(S)$ Aimed at preserving biodiversity and cultural heritage

Couplet represents the choice made between two opposite options which results in

The purpose of creating love and affection for wildlife in the minds of people and raising awareness about their conservation is the objective of which of the following?

Each statement in the taxonomic key is called a ........

Chemotaxonomy is connected with