What kingdomscontain all unicellular organisms?
The act of intercourse typically involves the insertation of the male's penis into the female's vagina. The two partners find a rhythm that steadily increases until orgasm is achieved. Variations of the sex act include manual, oral and anal sex.
To the previous answer, it is not a plankton. Amoebas are single celled, but they are not plankton. These organisms are classified under Archaea, and are commonly called unicellular. They are not to be confused with microorganisms. All unicellular organisms are microorganisms, but not all microorganisms are unicellular.
All the bacteria and archea are unicellular organisms without nucleus. For example streptococcus pneumoniae is one of them. Unicellular organisms, such as these bacteria, are referred to as Prokaryotic, or as Prokaryotes. These terms refer to all cells and Unicellular organisms without a nucleus or membrane-bound organelles. They contrast to eukaryotes, which do have a nucleus and membrane-bound organelles. For example, humans are made of eukaryotic cells,