Who introduced the system of scientific nomenclature of organisms?

The system of scientific naming was introduced by

State appropriate terms for the following:
$(i)$ Amphibians of the plant kingdom.
$(ii)$ Plants not having well-differentiated body design.
$(iii)$ Single-celled,eukaryotic,and photosynthetic organism.

Draw the diagram of $Spirogyra$ and label the following parts:
$(a)$ Cell wall $(b)$ Pyrenoid $(c)$ Nucleus $(d)$ Chloroplast.

What is the difference between Bryophyta and Pteridophyta?

State whether the following statement is true or false:
Thallophytes are called the amphibians of the plant kingdom.