yes
They obtain their oxygen by simple diffusion.
NO! They are organelles of cells of both multicellular and unicellular organisms.
Organisms composed of many cells are called multicellular organisms.
Cells that are specialized in multicellular organisms means they do many things. This is what helps the body function.
The main system that serves the needs of individual cells in multicellular organisms is the circulatory system. This is used to take waste away from individual cells and bring in new fuel such as proteins, glucose, and oxygen.
They obtain their oxygen by simple diffusion.
NO! They are organelles of cells of both multicellular and unicellular organisms.
Organisms composed of many cells are called multicellular organisms.
cells are cells, but a multicellular organism has more than one cell, though unicellular organisms have only a single cell.
Cells that are specialized in multicellular organisms means they do many things. This is what helps the body function.
There are many multicellular organisms. Even protists, such as seaweed, can be multicellular. The only organism that cannot be multicellular is a bacterium.
The main system that serves the needs of individual cells in multicellular organisms is the circulatory system. This is used to take waste away from individual cells and bring in new fuel such as proteins, glucose, and oxygen.
Multicellular organisms.
In single-celled organisms the entire surface of the organisms is in contact with the environments for the diffusion of substances. In multi-cellular organisms all the cells may not be in direct contact with the surrounding environment. So simple diffusion will not meet the requirements of all the cells.
multicellular
The organisms you described are classified together in the kingdom Plantae. Plants are multicellular, have eukaryotic cells with cell walls made of cellulose, and perform photosynthesis to produce energy.
they fight of the belliontricullar witch is a virus that may harm cells in the multicellular organisms.