systems
Nothing, the "organs" of a many celled organism are themselves made up of cells.
The five main levels of organization in many-celled organisms are cells, tissues, organs, organ systems, and the whole organism. Cells group together to form tissues, which work together to make up organs. Organs combine to form organ systems, which work together to support the entire organism.
Monera
Vascular
Multi-celled plants do just that thing all the time.
Just one, it is a single celled organism.
No, because remember that there are some one celled organism. That don't even have enough cells to make a tissue
No, it is not. Mosquitos' require many cells to make them mosquitoes.
organism. (an organism that is not a protists, Monera, or bacterium) organism, generally, but i believe it is possible to have a single celled organism, small bacteria or something like that. Cells combine to make up organisms
All prokaryotic organisms are single-celled organisms.
Multi celled of course! Atoms make up molecules. Molecules make up organelles. Organelles make up cells. cells make up tissue. Tissue makes up organs. organs make up organ systems. Organ systems make up organisms.
Your question is meaningless. The basis of life is the cell. Some forms of life are just one cell living alone (unicellular life) and other forms of life are made from many cells cooperating together (multicellular life). In complex forms of multicellular life, some cells form organs (such as the liver, lungs, heart, eyes etc) of specialized function. Organs DO NO work together to make up a many-celled organism because organs are made up of many cells themselves.