Question

malaysia was researching the levels of organization for her science project. she discovered that the skin is the largest organ in the human body. which best describes the levels of organization that make up the skin? a. the skin is composed of organs and organ systems. b. the skin is composed of cells and organisms. c. the skin is composed of tissues and organs. d. the skin is composed of cells and tissues.

Explanation:

The levels of organization in biology start from cells. Cells form tissues, and tissues form organs. The skin is an organ. So it is made up of cells (basic unit) which combine to form tissues, and these tissues together make the organ (skin).

• Option A is wrong because the skin itself is an organ, not composed of organs and organ systems.
• Option B is wrong as organisms are made up of many organ - systems, and the skin is just an organ.
• Option C is wrong because the skin is an organ, not composed of organs (it is an organ itself) and tissues. The correct hierarchy for its composition is cells → tissues → organ (skin).

Answer:

D. The skin is composed of cells and tissues.