Does a Multicellular Organism Develop?

A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs. Development involves cell division, body axis formation, tissue and organ development, and cell differentiation (gaining a final cell type identity).

Do all multicellular organisms grow and develop?

All living things grow and get larger during their lives. Multicellular organisms undergo a process known as development, which requires changes in their cells.

How did multicellular organisms develop?

Multicellular organisms arise in various ways, for example by cell division or by aggregation of many single cells. Colonial organisms are the result of many identical individuals joining together to form a colony.