These are called multi-celled organisms.
Cells
cell, tissue, organ, organ system that's it I am a 5th grader
When there are more components to a system, like having more cells, then there is a greater potential for more complex behaviors. With more complexity, there can be some advantages for survival. The interesting thing is that we still have here on earth, very simple organisms that are composed of one or just a small number of cells, and we also have organisms that are composed of a large number of 'small' cells. The jury is still not out on which are more successful. As an example, if we complex humans with a large number of small cells launch a nuclear attack against each other, we would all die, but the cockroaches would probably survive because, in part, they are made of a smaller number of cells. Which anatomy has a better advantage? It's hard to say.
It is a biome.
large organisms need larger area to exchange more substances.but large organisms have small surface area to volume ratio.this means that the surface is not large enough to enable gases and nutrients at the fast rate needed to keep all the cells alive.thus large organisms need special exchange surfaces to provide the body with the nutrients and gaseous exchange they require.
Eukaryote
multicellular
The answer is yes. If by large you mean composed of one or more cells.
cell, tissue, organ, organ system that's it I am a 5th grader
Cells are the smallest unit of life. Large groups of cells with the same purpose are called tissue, groups of tissue with the same purpose form organs, organs with similar purposes form systems and systems form organisms.
Cells
multicellular
When there are more components to a system, like having more cells, then there is a greater potential for more complex behaviors. With more complexity, there can be some advantages for survival. The interesting thing is that we still have here on earth, very simple organisms that are composed of one or just a small number of cells, and we also have organisms that are composed of a large number of 'small' cells. The jury is still not out on which are more successful. As an example, if we complex humans with a large number of small cells launch a nuclear attack against each other, we would all die, but the cockroaches would probably survive because, in part, they are made of a smaller number of cells. Which anatomy has a better advantage? It's hard to say.
One Large
All organisms have cells. Tarsiers are large creatures, so they obviously have many cells.
It is a biome.
They are bathed in fluids such as blood that are isotonic
Multicellular organisms are organisms with more than one cell, the cells of which are usually specialized. A large colonial organism is an organism of many cells that are loosely attached to each other and that show little or no specialization among themselves. Multicellular organisms are capable of surviving on their own while colonial organisms are not.