Mobile animal forms are derived from which of the following?

In which group of organisms do the cell walls form two thin overlapping shells that fit together?

Consider the following statements and select the correct set of features with respect to the life cycle of acellular slime moulds:
$a.$ Haploid vegetative stage as myxamoebae
$b.$ Diploid vegetative stage as plasmodium
$c.$ Capillitium
$d.$ Photosynthetic protists
$e.$ Sporic meiosis
$f.$ Isogamous sexual reproduction
$g.$ Anisogamous sexual reproduction with zygotic meiosis

Describe amoeboid protozoans.

Which one of the following is not a protozoan protist?

Which of the following organisms are simple,predominantly aquatic,unicellular,and eukaryotic?