Protozoa are eukaryotic.
A cell on the basis of organisation of its nucleus can be of two kinds:
1.PROKARYOTIC
2.EUKARYOTIC
PROKARYOTIC CELL: in prokaryotic cell [unorganised nucleus] no nucleus is present; instead a ring like nucleic acid DNA is present. it is also termed as nucleoid. all cell organelles are absent except ribosomes. Examples: bacteria, blue green algae.
EUKARYOTIC CELL: in eukaryotic cells a true nucleus is present. A true nucleus has four parts namely: nucleolus, nuclear membrane, nuclear reticulum, nucleoplasm. All cell organelles are present in a eukaryotic cell. Examples: amoeba, spirogyra.
Unicellular infectious agents are prokaryotes, eukaryotes, bacteria, and protoza.
Eukaryotes most likely evolved from prokaryotes.
There are two basic types of cells, prokaryotes and eukaryotes. Eukaryotes differ from prokaryotes in a few ways, but the biggest difference is that eukaryotes have a nucleus and prokaryotes don't.
Eukaryotes have a nucleus and membrane-bound organelles, such as mitochondria and endoplasmic reticulum, which prokaryotes lack. Eukaryotes also have linear chromosomes, while prokaryotes have circular chromosomes. Additionally, eukaryotes often have multicellular organization, which is less common in prokaryotes.
Since you asked about the main organelle, singular, I will have to say....The membrane bound nucleus that eukaryotes have and prokaryotes do not.
Unicellular infectious agents are prokaryotes, eukaryotes, bacteria, and protoza.
All bacteria, including cyanobacteria and archybacteria are prokaryotes. All other types of organisms are eukaryotes.
Bacteria have simple genomes and are prokaryotes Protozoa are eukaryotes with more complex genomes (the ameoba has a 670 billion base pair genome! compared to the human 3.2 billion)
cytoplasm is found in both eukaryotes and prokaryotes.
hey are only in eukaryotes. They are never in prokaryotes.
Eukaryotes most likely evolved from prokaryotes.
There are two basic types of cells, prokaryotes and eukaryotes. Eukaryotes differ from prokaryotes in a few ways, but the biggest difference is that eukaryotes have a nucleus and prokaryotes don't.
eukaryotes
Eukaryotes have a nucleus and membrane-bound organelles, such as mitochondria and endoplasmic reticulum, which prokaryotes lack. Eukaryotes also have linear chromosomes, while prokaryotes have circular chromosomes. Additionally, eukaryotes often have multicellular organization, which is less common in prokaryotes.
Eukaryotes have a nucleus and other membrane-bound organelles, while prokaryotes do not. Eukaryotes are typically larger and more complex than prokaryotes.
prokaryotes have a nucleas
Prokaryotes have no distinct nucleus.