AP BIOLOGY

Detailed explanation-1: -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-2: -In multicellular organisms cells differentiate and specialize to form tissues which cooperate to form organs such as brains, kidneys, hearts, stomachs, and lungs. Without specialized cells multicellular organisms would be nothing more than a homogeneous lump of cells.

Detailed explanation-3: -Multicellular organisms need cells to carry out different functions and work together to support a balance in the system called homeostasis. Thus, different cells become specialized for various functions. The definition of specialized cells are cells with unique structures and functions in the body.

Detailed explanation-4: -Multicellular organisms consist of “multiple” cells. However, they not only have many cells, but specialized cells that carry out different functions. Groups of cells form tissues and organs, which perform different functions for the survival of the organism.

Detailed explanation-5: -Multicellular organisms delegate biological responsibilities such as barrier function, circulation, digestion, respiration and sexual reproduction to specific organ systems such as the skin, heart, stomach, lungs, and sex organs.