Question

Give 1 similarity and 1 difference between organisms like diatoms and protozoans

Answer 1

Diatoms are single-celled algae. Diatoms are algae that live in houses made of glass. They are the only organism on the planet with cell walls composed of transparent, opaline silica.

Protozoa is an informal term for single-celled eukaryotes, either free-living or parasitic, which feed on organic matter such as other microorganisms or organic tissues and debris.