What is a relevance of the "Protista?"

Protists are unicellular eukaryotes which show both plant and animal characters and these are considered as a bridge between plants and animals.

Explanation:

Protists are single-celled life forms and are eukaryotic organisms. Some of the protists like euglena shows both plant and animal characteristics. Protists are important in the following aspects -

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .