What is the ecological and economic importance of the following organisms?
$(i)$ Diatoms
$(ii)$ Mycorrhiza

The protistan genome is characterized by:

During unfavorable and favorable conditions,slime molds form $..........$ and $..........$,respectively.

The organism shown in the figure:

Read the following statements and answer the question given below:
$(i)$ They are saprophytic protists.
$(ii)$ Under suitable conditions,they form an aggregation (called plasmodium) which may grow and spread over several feet.
$(iii)$ During unfavourable conditions,the plasmodium differentiates and forms fruiting bodies bearing spores at their tips.
Which of the following class of protists is being described by the above statements?

Chrysophytes,euglenoids,dinoflagellates,and slime molds are included in the kingdom ............ .