The need for food, or water.
possibly breathing
blood (has a heart)
or the chance the reproduce.
The basic structure or a protozoa is a unicellular eukaryote that has a relatively complicated internal strucuture and are meant to carry out complex metabolic activities. Some protozoa also have structures for propulsion or other types of movements. and yes they can be seen under light microscope
They are able to Self-Pollinate, or fertilize on their own and reproduce.
Cell saps are the liquid inside of a plant cell's large central vacuole, which acts as support in order for it to function. They're made up of amino acids, glucose, salts and water and plays an important role in osmosis.
Cytoplasms, on the other hand, are a jelly-like substance between the cell membrane and nuclear envelope within a eukaryotic cell. They're mostly made up of water and salt, and aid in growth and metabolism in a cell.