Which of the following has two unequal apical flagella?

Which classification system was proposed by $R.H. Whittaker$?

Select the correct option based on the evolutionary relationships between the kingdoms.

Out of the four statements $(1-4)$ given below,two are correct regarding Whittaker's classification system. Which two are correct?
$(1)$ Classification based on cell complexity
$(2)$ Classification based on mode of nutrition
$(3)$ Classification based on phylogenetic relationships
$(4)$ Classification based on habitat type

Most of the unicellular organisms are kept under

Which domain of the three-domain system includes the Kingdom Monera of the five-kingdom classification system?