Ohio Science Academic Content Standards (2002)
Explain that the basic functions of organisms are carried out in cells and groups of specialized cells form tissues and organs; the combination of these cells make up multicellular organisms that have a variety of body plans and internal structures.
Grade Level Indicators (Grade 6)
Explain that multicellular organisms have a variety of specialized cells, tissues, organs and organ systems that perform specialized functions.
National Science Education Standards
Structure and function in living systems (Grades 5 - 8)