AP BIOLOGY

Detailed explanation-1: -A multicellular organism is an organism composed of many cells. The term “multi” is technically used to refer to something that is more than one, hence “multicellular” means more than one. The multicellular organisms are developed by cellular specialization and division of labour.

Detailed explanation-2: -Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells.

Detailed explanation-3: -As well as humans, plants, animals and some fungi and algae are multicellular. A multicellular organism is always eukaryote and so has cell nuclei.

Detailed explanation-4: -Animals have evolved a considerable diversity of cell types in a multicellular body (100–150 different cell types), compared with 10–20 in plants and fungi.

Detailed explanation-5: -An organism which is made of more than one cell is called a multi-cellular organism. Humans, animals and plants are some multi-cellular organisms which are made of millions to trillions of cells.