AP BIOLOGY

Detailed explanation-1: -Multicellular organisms are made of more than one cell and are complex organisms. They are visible to the naked eye. They possess distinct organs and organ systems. They are eukaryotes, i.e., they contain membrane-bound structures.

Detailed explanation-2: -Organisms that are made up of more than one cell are known as multicellular. Multicellular organisms are said to be complex. As they are made up of many different cells. An example of a multicellular organism would be human beings.

Detailed explanation-3: -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-4: -Diplococci (http://en.wikipedia.org/wiki/Diplococcus), bacteria that are typically found in pairs of cells. Desmids (http://en.wikipedia.org/wiki/Desmidiales) unicellular organisms that have two main compartments separated by an isthmus.