Amoeba is a/an

The structure in Amoeba functionally similar to human kidney is

Slipper animalcule is

Single-celled eukaryotes are included in

What is the foundation of the food web in the ocean?

Which parasitic protist causes sleeping sickness, a disease transmitted by the tsetse fly?

Which group of protists contributes significantly to the formation of red tides, often leading to marine animal mortality?

When a freshwater protozoan, possessing a contractile vacuole, is placed in a glass containing marine water, the vacuole will?

Consider the following statements

I. Kingdom-Protista forms a link between monerans and the other organisms like plants, animal and fungi

II. Protists reproduce asexually and sexually by a process involving cell fusion and zygote formation

III. Being eukaryotes, the protistan cell body contains a well defined nucleus and other membrane-bound organelles

Which of the statements given above are correct?

Photosensitive Stigma or eye spot is found in:

Siliceous frustules of diatoms being indestructible, piled up at the bottom of ocean and formed a thick bed over billions of years. Such a thick bed is known as