What type of movement do diatoms exhibit in water?

Which organisms obtain nutrition through both photosynthesis and absorption?

What is common between Amoeba and Paramecium?

Two species of Amoeba $X$ and $Y$ were kept in fresh water and adapted to it. Species $X$ developed a contractile vacuole. When both were transferred to sea water and adapted, both $X$ and $Y$ lost their contractile vacuole. From these observations, we conclude that:

Myxomycetes are:

Which type of symmetry is observed in the phylum Protozoa?