Is there a single celled organism?

Answer 1

An eukaryotic cell just means that it has membrane bound organelles and a nucleus. single cell organisms are organisms that are solo, they aren't cell specialized. Single cell organisms can be eukaryoic or prokaryotic (no membrane bound organelles and no nucleus) cells.

Answer 2

No. Every organism is made of cells, and cells have "organelles".

An organ, however, is composed of tissues, which are composed of many cells, and therefor it is not possible for a single celled organism (plant, animal, fungus, etc) to have organs.

(If you want to get confused, read about sea-sponges.)

Answer 3

It depends on the type of organism! One major group of organisms, the bacteria, do not have a nucleus in their cell. However they do have DNA, like other organisms. Bacteria belong to the kingdom Prokaryota, which means without a nucleus (literally, before the nucleus) All other organisms are eukaryotes: they do have a nucleus in their cells. Single-celled eukaryotes are classified as Protists or Protoctists. The protists range from very simple organisms to very complicated organisms, for example ciliates. Ciliates can have more than one nucleus in their cells.

Answer 4

no single celled organisms don't even have enough cells to make a tissue so therefor they don't have organs. :)

Answer 5

No, they are called "organelles" in a single celled organism. "Organs" are multi-celled structures with specific functions.

Answer 6

Single celled organisms are those that have only a single cell. The cell is the organism. Like bacteria

Answer 7

Yes. An organelle is a part of a cell, or what is inside a single cell. A nucleus, mitochondria, lysozomes, etc, are all organelles and what make up a cell.

Answer 8

yes they do. however they do not have membrane-bound organelles

Answer 9

Yes, bacteria are single celled organisms.