What is the difference between protozoa and metazoa?

What is the difference between protozoa and metazoa?

Differences between protozoa and metazoa:

Protozoa Metazoa
* Unicellular * Multicellular
* Microscopic * Both microscopic and macroscopic
* Single cell performs all the physiological activities such as digestion, excretion reproduction, etc. * Different cells or tissues collectively carry out different physiological functions
* They have a cellular grade of organization. * They have cellular tissue, organ and system grade of organization.
* Example: Entamoeba histolytica * Example: Ascaris lumbricoides